div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails1jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=2Page 2button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=2 data-page=2 class=ts-thumb lazyload alt=Page 2: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails2jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=3Page 3button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=3 data-page=3 class=ts-thumb lazyload alt=Page 3: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails3jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=4Page 4button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=4 data-page=4 class=ts-thumb lazyload alt=Page 4: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails4jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=5Page 5button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=5 data-page=5 class=ts-thumb lazyload alt=Page 5: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails5jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=6Page 6button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=6 data-page=6 class=ts-thumb lazyload alt=Page 6: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails6jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=7Page 7button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=7 data-page=7 class=ts-thumb lazyload alt=Page 7: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails7jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=8Page 8button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=8 data-page=8 class=ts-thumb lazyload alt=Page 8: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails8jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=9Page 9button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=9 data-page=9 class=ts-thumb lazyload alt=Page 9: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails9jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=10Page 10button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=10 data-page=10 class=ts-thumb lazyload alt=Page 10: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails10jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=11Page 11button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=11 data-page=11 class=ts-thumb lazyload alt=Page 11: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails11jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=12Page 12button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=12 data-page=12 class=ts-thumb lazyload alt=Page 12: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails12jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=13Page 13button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=13 data-page=13 class=ts-thumb lazyload alt=Page 13: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails13jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=14Page 14button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=14 data-page=14 class=ts-thumb lazyload alt=Page 14: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails14jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=15Page 15button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=15 data-page=15 class=ts-thumb lazyload alt=Page 15: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails15jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=16Page 16button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=16 data-page=16 class=ts-thumb lazyload alt=Page 16: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails16jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=17Page 17button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=17 data-page=17 class=ts-thumb lazyload alt=Page 17: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails17jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=18Page 18button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=18 data-page=18 class=ts-thumb lazyload alt=Page 18: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails18jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=19Page 19button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=19 data-page=19 class=ts-thumb lazyload alt=Page 19: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails19jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=20Page 20button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=20 data-page=20 class=ts-thumb lazyload alt=Page 20: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails20jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=21Page 21button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=21 data-page=21 class=ts-thumb lazyload alt=Page 21: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails21jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=22Page 22button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=22 data-page=22 class=ts-thumb lazyload alt=Page 22: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails22jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=23Page 23button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=23 data-page=23 class=ts-thumb lazyload alt=Page 23: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails23jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=24Page 24button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=24 data-page=24 class=ts-thumb lazyload alt=Page 24: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails24jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=25Page 25button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=25 data-page=25 class=ts-thumb lazyload alt=Page 25: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails25jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=26Page 26button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=26 data-page=26 class=ts-thumb lazyload alt=Page 26: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails26jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=27Page 27button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=27 data-page=27 class=ts-thumb lazyload alt=Page 27: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails27jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=28Page 28button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=28 data-page=28 class=ts-thumb lazyload alt=Page 28: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails28jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=29Page 29button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=29 data-page=29 class=ts-thumb lazyload alt=Page 29: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails29jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=30Page 30button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=30 data-page=30 class=ts-thumb lazyload alt=Page 30: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails30jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=31Page 31button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=31 data-page=31 class=ts-thumb lazyload alt=Page 31: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails31jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=32Page 32button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=32 data-page=32 class=ts-thumb lazyload alt=Page 32: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails32jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=33Page 33button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=33 data-page=33 class=ts-thumb lazyload alt=Page 33: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails33jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=34Page 34button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=34 data-page=34 class=ts-thumb lazyload alt=Page 34: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails34jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=35Page 35button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=35 data-page=35 class=ts-thumb lazyload alt=Page 35: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails35jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=36Page 36button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=36 data-page=36 class=ts-thumb lazyload alt=Page 36: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails36jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=37Page 37button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=37 data-page=37 class=ts-thumb lazyload alt=Page 37: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails37jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=38Page 38button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=38 data-page=38 class=ts-thumb lazyload alt=Page 38: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails38jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=39Page 39button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=39 data-page=39 class=ts-thumb lazyload alt=Page 39: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails39jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=40Page 40button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=40 data-page=40 class=ts-thumb lazyload alt=Page 40: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails40jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=41Page 41button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=41 data-page=41 class=ts-thumb lazyload alt=Page 41: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails41jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=42Page 42button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=42 data-page=42 class=ts-thumb lazyload alt=Page 42: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails42jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=43Page 43button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=43 data-page=43 class=ts-thumb lazyload alt=Page 43: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails43jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=44Page 44button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=44 data-page=44 class=ts-thumb lazyload alt=Page 44: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails44jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=45Page 45button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=45 data-page=45 class=ts-thumb lazyload alt=Page 45: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails45jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=46Page 46button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=46 data-page=46 class=ts-thumb lazyload alt=Page 46: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails46jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=47Page 47button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=47 data-page=47 class=ts-thumb lazyload alt=Page 47: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails47jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=48Page 48button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=48 data-page=48 class=ts-thumb lazyload alt=Page 48: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails48jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=49Page 49button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=49 data-page=49 class=ts-thumb lazyload alt=Page 49: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails49jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=50Page 50button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=50 data-page=50 class=ts-thumb lazyload alt=Page 50: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails50jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=51Page 51button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=51 data-page=51 class=ts-thumb lazyload alt=Page 51: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails51jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=52Page 52button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=52 data-page=52 class=ts-thumb lazyload alt=Page 52: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails52jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=53Page 53button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=53 data-page=53 class=ts-thumb lazyload alt=Page 53: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails53jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=54Page 54button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=54 data-page=54 class=ts-thumb lazyload alt=Page 54: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails54jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=55Page 55button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=55 data-page=55 class=ts-thumb lazyload alt=Page 55: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails55jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=56Page 56button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=56 data-page=56 class=ts-thumb lazyload alt=Page 56: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails56jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=57Page 57button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=57 data-page=57 class=ts-thumb lazyload alt=Page 57: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails57jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=58Page 58button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=58 data-page=58 class=ts-thumb lazyload alt=Page 58: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails58jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=59Page 59button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=59 data-page=59 class=ts-thumb lazyload alt=Page 59: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails59jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=60Page 60button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=60 data-page=60 class=ts-thumb lazyload alt=Page 60: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails60jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=61Page 61button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=61 data-page=61 class=ts-thumb lazyload alt=Page 61: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails61jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=62Page 62button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=62 data-page=62 class=ts-thumb lazyload alt=Page 62: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails62jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=63Page 63button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=63 data-page=63 class=ts-thumb lazyload alt=Page 63: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails63jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=64Page 64button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=64 data-page=64 class=ts-thumb lazyload alt=Page 64: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails64jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=65Page 65button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=65 data-page=65 class=ts-thumb lazyload alt=Page 65: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails65jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=66Page 66button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=66 data-page=66 class=ts-thumb lazyload alt=Page 66: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails66jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=67Page 67button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=67 data-page=67 class=ts-thumb lazyload alt=Page 67: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails67jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=68Page 68button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=68 data-page=68 class=ts-thumb lazyload alt=Page 68: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails68jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=69Page 69button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=69 data-page=69 class=ts-thumb lazyload alt=Page 69: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails69jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=70Page 70button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=70 data-page=70 class=ts-thumb lazyload alt=Page 70: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails70jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=71Page 71button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=71 data-page=71 class=ts-thumb lazyload alt=Page 71: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails71jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=72Page 72button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=72 data-page=72 class=ts-thumb lazyload alt=Page 72: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails72jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=73Page 73button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=73 data-page=73 class=ts-thumb lazyload alt=Page 73: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails73jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=74Page 74button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=74 data-page=74 class=ts-thumb lazyload alt=Page 74: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails74jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=75Page 75button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=75 data-page=75 class=ts-thumb lazyload alt=Page 75: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails75jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=76Page 76button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=76 data-page=76 class=ts-thumb lazyload alt=Page 76: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails76jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=77Page 77button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=77 data-page=77 class=ts-thumb lazyload alt=Page 77: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails77jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=78Page 78button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=78 data-page=78 class=ts-thumb lazyload alt=Page 78: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails78jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=79Page 79button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=79 data-page=79 class=ts-thumb lazyload alt=Page 79: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails79jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=80Page 80button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=80 data-page=80 class=ts-thumb lazyload alt=Page 80: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails80jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=81Page 81button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=81 data-page=81 class=ts-thumb lazyload alt=Page 81: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails81jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=82Page 82button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=82 data-page=82 class=ts-thumb lazyload alt=Page 82: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails82jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=83Page 83button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=83 data-page=83 class=ts-thumb lazyload alt=Page 83: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails83jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=84Page 84button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=84 data-page=84 class=ts-thumb lazyload alt=Page 84: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails84jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=85Page 85button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=85 data-page=85 class=ts-thumb lazyload alt=Page 85: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails85jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=86Page 86button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=86 data-page=86 class=ts-thumb lazyload alt=Page 86: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails86jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=87Page 87button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=87 data-page=87 class=ts-thumb lazyload alt=Page 87: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails87jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=88Page 88button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=88 data-page=88 class=ts-thumb lazyload alt=Page 88: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails88jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=89Page 89button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=89 data-page=89 class=ts-thumb lazyload alt=Page 89: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails89jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=90Page 90button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=90 data-page=90 class=ts-thumb lazyload alt=Page 90: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails90jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=91Page 91button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=91 data-page=91 class=ts-thumb lazyload alt=Page 91: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails91jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=92Page 92button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=92 data-page=92 class=ts-thumb lazyload alt=Page 92: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails92jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=93Page 93button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=93 data-page=93 class=ts-thumb lazyload alt=Page 93: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails93jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=94Page 94button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=94 data-page=94 class=ts-thumb lazyload alt=Page 94: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails94jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=95Page 95button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=95 data-page=95 class=ts-thumb lazyload alt=Page 95: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails95jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=96Page 96button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=96 data-page=96 class=ts-thumb lazyload alt=Page 96: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails96jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=97Page 97button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=97 data-page=97 class=ts-thumb lazyload alt=Page 97: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails97jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=98Page 98button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=98 data-page=98 class=ts-thumb lazyload alt=Page 98: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails98jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=99Page 99button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=99 data-page=99 class=ts-thumb lazyload alt=Page 99: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails99jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=100Page 100button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=100 data-page=100 class=ts-thumb lazyload alt=Page 100: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails100jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=101Page 101button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=101 data-page=101 class=ts-thumb lazyload alt=Page 101: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails101jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=102Page 102button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=102 data-page=102 class=ts-thumb lazyload alt=Page 102: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails102jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=103Page 103button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=103 data-page=103 class=ts-thumb lazyload alt=Page 103: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails103jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=104Page 104button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=104 data-page=104 class=ts-thumb lazyload alt=Page 104: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails104jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=105Page 105button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=105 data-page=105 class=ts-thumb lazyload alt=Page 105: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails105jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=106Page 106button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=106 data-page=106 class=ts-thumb lazyload alt=Page 106: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails106jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=107Page 107button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=107 data-page=107 class=ts-thumb lazyload alt=Page 107: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails107jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=108Page 108button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=108 data-page=108 class=ts-thumb lazyload alt=Page 108: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails108jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=109Page 109button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=109 data-page=109 class=ts-thumb lazyload alt=Page 109: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails109jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=110Page 110button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=110 data-page=110 class=ts-thumb lazyload alt=Page 110: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails110jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=111Page 111button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=111 data-page=111 class=ts-thumb lazyload alt=Page 111: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails111jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=112Page 112button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=112 data-page=112 class=ts-thumb lazyload alt=Page 112: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails112jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=113Page 113button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=113 data-page=113 class=ts-thumb lazyload alt=Page 113: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails113jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=114Page 114button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=114 data-page=114 class=ts-thumb lazyload alt=Page 114: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails114jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=115Page 115button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=115 data-page=115 class=ts-thumb lazyload alt=Page 115: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails115jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=116Page 116button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=116 data-page=116 class=ts-thumb lazyload alt=Page 116: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails116jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=117Page 117button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=117 data-page=117 class=ts-thumb lazyload alt=Page 117: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails117jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=118Page 118button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=118 data-page=118 class=ts-thumb lazyload alt=Page 118: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails118jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=119Page 119button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=119 data-page=119 class=ts-thumb lazyload alt=Page 119: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails119jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=120Page 120button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=120 data-page=120 class=ts-thumb lazyload alt=Page 120: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails120jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=121Page 121button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=121 data-page=121 class=ts-thumb lazyload alt=Page 121: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails121jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=122Page 122button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=122 data-page=122 class=ts-thumb lazyload alt=Page 122: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails122jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=123Page 123button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=123 data-page=123 class=ts-thumb lazyload alt=Page 123: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails123jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=124Page 124button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=124 data-page=124 class=ts-thumb lazyload alt=Page 124: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails124jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=125Page 125button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=125 data-page=125 class=ts-thumb lazyload alt=Page 125: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails125jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=126Page 126button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=126 data-page=126 class=ts-thumb lazyload alt=Page 126: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails126jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=127Page 127button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=127 data-page=127 class=ts-thumb lazyload alt=Page 127: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails127jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=128Page 128button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=128 data-page=128 class=ts-thumb lazyload alt=Page 128: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails128jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=129Page 129button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=129 data-page=129 class=ts-thumb lazyload alt=Page 129: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails129jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=130Page 130button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=130 data-page=130 class=ts-thumb lazyload alt=Page 130: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails130jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=131Page 131button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=131 data-page=131 class=ts-thumb lazyload alt=Page 131: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails131jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=132Page 132button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=132 data-page=132 class=ts-thumb lazyload alt=Page 132: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails132jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=133Page 133button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=133 data-page=133 class=ts-thumb lazyload alt=Page 133: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails133jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=134Page 134button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=134 data-page=134 class=ts-thumb lazyload alt=Page 134: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails134jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=135Page 135button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=135 data-page=135 class=ts-thumb lazyload alt=Page 135: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails135jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=136Page 136button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=136 data-page=136 class=ts-thumb lazyload alt=Page 136: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails136jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=137Page 137button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=137 data-page=137 class=ts-thumb lazyload alt=Page 137: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails137jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=138Page 138button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=138 data-page=138 class=ts-thumb lazyload alt=Page 138: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails138jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=139Page 139button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=139 data-page=139 class=ts-thumb lazyload alt=Page 139: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails139jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=140Page 140button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=140 data-page=140 class=ts-thumb lazyload alt=Page 140: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails140jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=141Page 141button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=141 data-page=141 class=ts-thumb lazyload alt=Page 141: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails141jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=142Page 142button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=142 data-page=142 class=ts-thumb lazyload alt=Page 142: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails142jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=143Page 143button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=143 data-page=143 class=ts-thumb lazyload alt=Page 143: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails143jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=144Page 144button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=144 data-page=144 class=ts-thumb lazyload alt=Page 144: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails144jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=145Page 145button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=145 data-page=145 class=ts-thumb lazyload alt=Page 145: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails145jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=146Page 146button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=146 data-page=146 class=ts-thumb lazyload alt=Page 146: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails146jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=147Page 147button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=147 data-page=147 class=ts-thumb lazyload alt=Page 147: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails147jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=148Page 148button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=148 data-page=148 class=ts-thumb lazyload alt=Page 148: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails148jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=149Page 149button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=149 data-page=149 class=ts-thumb lazyload alt=Page 149: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails149jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=150Page 150button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=150 data-page=150 class=ts-thumb lazyload alt=Page 150: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails150jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=151Page 151button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=151 data-page=151 class=ts-thumb lazyload alt=Page 151: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails151jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=152Page 152button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=152 data-page=152 class=ts-thumb lazyload alt=Page 152: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails152jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=153Page 153button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=153 data-page=153 class=ts-thumb lazyload alt=Page 153: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails153jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=154Page 154button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=154 data-page=154 class=ts-thumb lazyload alt=Page 154: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails154jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=155Page 155button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=155 data-page=155 class=ts-thumb lazyload alt=Page 155: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails155jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=156Page 156button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=156 data-page=156 class=ts-thumb lazyload alt=Page 156: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails156jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=157Page 157button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=157 data-page=157 class=ts-thumb lazyload alt=Page 157: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails157jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=158Page 158button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=158 data-page=158 class=ts-thumb lazyload alt=Page 158: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails158jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=159Page 159button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=159 data-page=159 class=ts-thumb lazyload alt=Page 159: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails159jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=160Page 160button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=160 data-page=160 class=ts-thumb lazyload alt=Page 160: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails160jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=161Page 161button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=161 data-page=161 class=ts-thumb lazyload alt=Page 161: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails161jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=162Page 162button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=162 data-page=162 class=ts-thumb lazyload alt=Page 162: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails162jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=163Page 163button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=163 data-page=163 class=ts-thumb lazyload alt=Page 163: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails163jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=164Page 164button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=164 data-page=164 class=ts-thumb lazyload alt=Page 164: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails164jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=165Page 165button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=165 data-page=165 class=ts-thumb lazyload alt=Page 165: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails165jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=166Page 166button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=166 data-page=166 class=ts-thumb lazyload alt=Page 166: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails166jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=167Page 167button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=167 data-page=167 class=ts-thumb lazyload alt=Page 167: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails167jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=168Page 168button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=168 data-page=168 class=ts-thumb lazyload alt=Page 168: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails168jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=169Page 169button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=169 data-page=169 class=ts-thumb lazyload alt=Page 169: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails169jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=170Page 170button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=170 data-page=170 class=ts-thumb lazyload alt=Page 170: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails170jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=171Page 171button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=171 data-page=171 class=ts-thumb lazyload alt=Page 171: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails171jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=172Page 172button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=172 data-page=172 class=ts-thumb lazyload alt=Page 172: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails172jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=173Page 173button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=173 data-page=173 class=ts-thumb lazyload alt=Page 173: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails173jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=174Page 174button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=174 data-page=174 class=ts-thumb lazyload alt=Page 174: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails174jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=175Page 175button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=175 data-page=175 class=ts-thumb lazyload alt=Page 175: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails175jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=176Page 176button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=176 data-page=176 class=ts-thumb lazyload alt=Page 176: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails176jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=177Page 177button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=177 data-page=177 class=ts-thumb lazyload alt=Page 177: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails177jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=178Page 178button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=178 data-page=178 class=ts-thumb lazyload alt=Page 178: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails178jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=179Page 179button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=179 data-page=179 class=ts-thumb lazyload alt=Page 179: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails179jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=180Page 180button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=180 data-page=180 class=ts-thumb lazyload alt=Page 180: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails180jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=181Page 181button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=181 data-page=181 class=ts-thumb lazyload alt=Page 181: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails181jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=182Page 182button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=182 data-page=182 class=ts-thumb lazyload alt=Page 182: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails182jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=183Page 183button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=183 data-page=183 class=ts-thumb lazyload alt=Page 183: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails183jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=184Page 184button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=184 data-page=184 class=ts-thumb lazyload alt=Page 184: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails184jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=185Page 185button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=185 data-page=185 class=ts-thumb lazyload alt=Page 185: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails185jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=186Page 186button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=186 data-page=186 class=ts-thumb lazyload alt=Page 186: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails186jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=187Page 187button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=187 data-page=187 class=ts-thumb lazyload alt=Page 187: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails187jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=188Page 188button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=188 data-page=188 class=ts-thumb lazyload alt=Page 188: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails188jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=189Page 189button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=189 data-page=189 class=ts-thumb lazyload alt=Page 189: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails189jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=190Page 190button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=190 data-page=190 class=ts-thumb lazyload alt=Page 190: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails190jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=191Page 191button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=191 data-page=191 class=ts-thumb lazyload alt=Page 191: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails191jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=192Page 192button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=192 data-page=192 class=ts-thumb lazyload alt=Page 192: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails192jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=193Page 193button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=193 data-page=193 class=ts-thumb lazyload alt=Page 193: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails193jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=194Page 194button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=194 data-page=194 class=ts-thumb lazyload alt=Page 194: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails194jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=195Page 195button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=195 data-page=195 class=ts-thumb lazyload alt=Page 195: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails195jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=196Page 196button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=196 data-page=196 class=ts-thumb lazyload alt=Page 196: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails196jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=197Page 197button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=197 data-page=197 class=ts-thumb lazyload alt=Page 197: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails197jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=198Page 198button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=198 data-page=198 class=ts-thumb lazyload alt=Page 198: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails198jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=199Page 199button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=199 data-page=199 class=ts-thumb lazyload alt=Page 199: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails199jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=200Page 200button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=200 data-page=200 class=ts-thumb lazyload alt=Page 200: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails200jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=201Page 201button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=201 data-page=201 class=ts-thumb lazyload alt=Page 201: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails201jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=202Page 202button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=202 data-page=202 class=ts-thumb lazyload alt=Page 202: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails202jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=203Page 203button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=203 data-page=203 class=ts-thumb lazyload alt=Page 203: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails203jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=204Page 204button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=204 data-page=204 class=ts-thumb lazyload alt=Page 204: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails204jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=205Page 205button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=205 data-page=205 class=ts-thumb lazyload alt=Page 205: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails205jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=206Page 206button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=206 data-page=206 class=ts-thumb lazyload alt=Page 206: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails206jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=207Page 207button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=207 data-page=207 class=ts-thumb lazyload alt=Page 207: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails207jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=208Page 208button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=208 data-page=208 class=ts-thumb lazyload alt=Page 208: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails208jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=209Page 209button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=209 data-page=209 class=ts-thumb lazyload alt=Page 209: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails209jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=210Page 210button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=210 data-page=210 class=ts-thumb lazyload alt=Page 210: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails210jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=211Page 211button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=211 data-page=211 class=ts-thumb lazyload alt=Page 211: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails211jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=212Page 212button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=212 data-page=212 class=ts-thumb lazyload alt=Page 212: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails212jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=213Page 213button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=213 data-page=213 class=ts-thumb lazyload alt=Page 213: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails213jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=214Page 214button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=214 data-page=214 class=ts-thumb lazyload alt=Page 214: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails214jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=215Page 215button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=215 data-page=215 class=ts-thumb lazyload alt=Page 215: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails215jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=216Page 216button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=216 data-page=216 class=ts-thumb lazyload alt=Page 216: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails216jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=217Page 217button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=217 data-page=217 class=ts-thumb lazyload alt=Page 217: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails217jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=218Page 218button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=218 data-page=218 class=ts-thumb lazyload alt=Page 218: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails218jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=219Page 219button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=219 data-page=219 class=ts-thumb lazyload alt=Page 219: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails219jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=220Page 220button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=220 data-page=220 class=ts-thumb lazyload alt=Page 220: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails220jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=221Page 221button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=221 data-page=221 class=ts-thumb lazyload alt=Page 221: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails221jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=222Page 222button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=222 data-page=222 class=ts-thumb lazyload alt=Page 222: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails222jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=223Page 223button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=223 data-page=223 class=ts-thumb lazyload alt=Page 223: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails223jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=224Page 224button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=224 data-page=224 class=ts-thumb lazyload alt=Page 224: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails224jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=225Page 225button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=225 data-page=225 class=ts-thumb lazyload alt=Page 225: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails225jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=226Page 226button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=226 data-page=226 class=ts-thumb lazyload alt=Page 226: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails226jpg width=140 height=200 divdivdiv class=ts-pagebutton class=gotoPage data-page=227Page 227button div class=ts-imageimg data-url=van-hiele-levels-and-achievement-in-secondary-school-geometryhtmlpage=227 data-page=227 class=ts-thumb lazyload alt=Page 227: Van Hiele Levels and Achievement in Secondary School Geometry loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader034vdocumentsnetreader034viewer202205221358832fa21a28abcd198bc325html5thumbnails227jpg width=140 height=200 divdiv
