Page 231 - SK Year 5 Mathematics DLP

MY DESIGN

Tools/Materials MS Word, A4 papers, printer, rulers, pens

Participants 4 pupils in a group

Task
1 Launch MS Word.

2 Click Insert. Click Shapes. Select two regular polygon EXAMPLES OF
COMPOSITE SHAPES
shapes up to six sides including right-angled triangles,
isosceles triangles, and rectangles.
3 Make a few composite shapes from any two regular
polygons using your own creativity by adjusting the
size, sequence, and colour for each shape.

4 Print and measure the perimeter of each shape that
you have made.
5 Present your completed work through Gallery Walk.

1 Calculate the perimeter for each of the composite shapes below.
a b 4 m
3 cm 3 cm 3 cm
3 cm

3 cm 5 m
12 m
3 cm 3 cm
3 cm
3 cm
2 Find the perimeter of the shaded region.
a b

7 m 10 cm
6 cm
5 cm

5 m 3.5 cm 4.5 cm

• Carry out activity in groups to answer the ‟Try These” questions. 223
6.3.1 • Each group presents their work and other groups can suggest other ways
when appropriate.