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Presentation transcript:

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Objectives By the end of this section, students should be able to: Calculate perimeter of regular shapes (triangle, square, rectangle, kite) Solve simple word problems involving perimeter in real life situation Calculate area of regular shapes (triangles, square, rectangle and kite) Solve simple word problems on real life contexts

Relating Recap to today’s lesson Last time, we learnt about length measurement, measuring tools and the units used Today we will learn about application of length in Perimeter & Area

Starter Activity: Video viewing Click here to view video

Discussion This was a quick recap video on Perimeter and Area Now, group yourselves in group of 5 & discuss on how you can briefly define Perimeter & Area Before that, attempt Questions in next slide

Testing prior knowledge (Perimeter) Shapes Formulae x cm ____ + _____+_____+_____ x cm ____ + _____+_____ ____ + _____+_____+_____

Testing prior knowledge (Area) Shapes Formulae Length × __________ ½ × ______× height _________× width

Definitions Perimeter is the total distance around a shape Area is the space occupied by a shape For example, the area of our school playground is 3000 square metres For example, perimeter of our classroom is 100 m 35m 15m 300m 100m

Video viewing on Perimeter Click here to view videoVideos\Math Antics - Perimeter.mp4

Class discussion on Video The distance Total distance around shape Perimeter is.. Add all sides.. Hmm.. Yeah.. Note: Teachers must point out that only polygons will be considered.

Activity Matching Regular Shapes Irregular Shapes

Real life examples of regular shapes

Activity 1

Activity 2 Complete the table

Activity 3 Note: Teacher can bring students in the garden and choose one student to walk around it twice

Click here to view video Video viewing on Area Click here to view video

Units for Area

Activity 4 Complete the table

Activity 5: MCQ (a) (b)

Activity 5 Calculate the area of the triangles below. (a) (b)

End of lesson So, what have you learnt on Perimeter & Area in this chapter?