area & its boundary things of same area can have different perimeter
Post on 22-Dec-2015
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Competency to be developed
• 1. Basic concept on area & perimeter• 2.Ability to calculate area & perimeter of
square & rectangle• 3.Solve word problem
Activity planned
• Take a drawing sheet and find its area & perimeter.Then cut into small strips.join the strips to form a belt. Find its area & perimeter.
• Same area can have different perimeter.
Find area & perimeter of the drawing sheet
• Area =L X B• 6 cm x 5cm = 30sq cm• Perimeter = 2x(L+B)• =2x(6+5)=22cm
• What is the area & perimeter of the given belt ?
• Area = 30cm x 1cm =30 sqcm• Perimeter = 2x(30cm + 1 cm) = 62 cm
Evaluation
• Worksheet• Q Draw two different plots of land each
enclosing an area of 24 sq cm .Find the perimeter of each of these plots.
Home assignment
• Draw 3 different plots of land each enclosing an area of 16 sq cm. Find the perimeter of each plot
Project
• Draw 4 different plots of land on 1cm grid, each having the perimeter of 32cm but enclosed different area.
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