16.1 polygons p. 354 introduction: quick review objective: to name and classify polygons vocabulary:...
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16.1 Polygons p. 354
Introduction: Quick Review Objective: to name and classify polygons Vocabulary: • polygon = closed plane figure w/ straight sides that are connected line segments1. vertex = each point where two sides meet2. n-gon = polygon w/ “n” sides3. decagon = 10-sided polygon
Guided Learning:1. Review divisibility rules (slide 2)2. Review EXAMPLES A. and B. -- How did you decide 610 was not divisible by 3?
http://www.hbschool.com/glossary/math2/index6.html
16.2 Triangles p. 356
Introduction: Quick Review Objective: learn how to classify triangles and solve problems involving angle measures of triangles Vocabulary: • acute triangle = contains only acute angles1. obtuse triangle = contains only one obtuse angle• right triangle = contains only one right angle1. equilateral triangle = three congruent sides2. isosceles triangle = exactly two congruent sides• scalene triangle = no congruent sides
Guided Learning:1. Review divisibility rules (slide 2)• Review EXAMPLES A. and B. -- How did you decide 610 was not divisible by 3?
http://www.hbschool.com/glossary/math2/index6.html http://www.bbc.co.uk/schools/ks2bitesize/maths/shape_space/shapes/play.shtml
http://www.mathwarehouse.com/geometry/triangles/interactive-triangle.htm
http://jmathpage.com/JIMSGeometrypage.html
16.3 Find a Pattern p. 360
Introduction: Quick Review Objective: learn how to use the strategy “find a pattern” to solve problems Vocabulary: 1. regular polygon = polygon which all sides and angles are congruent
http://www.hbschool.com/glossary/math2/index6.html
16.4 Quadrilaterals p. 362
Introduction: Quick Review Objective: learn how to identify, classify, and compare quadrilaterals
http://www.hbschool.com/glossary/math2/index6.html http://jmathpage.com/JIMSGeometrypage.html
16.5 Draw Plane Figures
p. 366
Introduction:1. Quick Review2. Objective: learn how to draw plane geometric figures
Square Dot Geoboard
Isometric Dot Paper
Square Dot Paper
Isometric Dot Geoboard
16.6 Circles p. 368
Introduction:1. Quick Review: Complete on your white board2. Objective: Learn how to identify and draw parts of circles3. Warm-Up: *Draw a dot on your white board, label it “O”. Next, draw a circle around the center dot you just drew.*Draw a radius and label it “radius” - someone explain how you did it!*Draw a diameter and label it “diameter” - someone explain how you did it!*Draw a chord and label it “chord” - someone explain how you did it!
16.6 Circles continued...
Vocabulary: • radius - line segment with one endpoint at the center of a circle and the other endpoint on the circle • diameter - line segment passing through the center of a circle and has both endpoints on the circle• chord - line segment with its endpoints on a circle
Harcourt Math Glossary
Properties of Polygons
Name Sometimes Always Never
polygon
isosceles triangle
scalene triangle
equilateral triangle
right triangle
parallellogram
rectangle
rhombus
square
trapezoid