Area of rectangles and triangles

Entry Activity

Look at the cards on your desk.

In pairs discuss match the key words to the definitions.

Area The space inside the shapeRemember: The grass inside a field

Perimeter The length around the outside of a shapeRemember: The fence around the field

Rectangle A four sided shape, two sets of parallel sides, two pairs of sides that are the same length, all angles are 90˚

Square A four sided shape, all sides are the same length, all angles are 90˚, two pairs of parallel sides

Triangle A shape with three sides, all the sides are straight

cm² This shows a measurement of area

Polygon A shape with only straight sides

Parallel Side by side and having the same distance continuously between them

• I will learn to calculate the area of squares and rectangles by counting squares Level 3• I will learn to calculate the area of

squares and rectangles using lengths Level 4• I will learn to calculate the area of a

triangle Level 5• Challenge Objective: I will learn to

calculate the area of compound shapes Level 5+

I will learn to calculate the area of squares and rectangles by counting squares Level 3

I will learn to calculate the area of squares and rectangles using lengths Level 4

9cm²24cm² 35cm² 25cm²

108cm²

84cm² 81cm² 49cm² 54cm² 121cm²

45cm²147cm²

0.25cm²20cm² 22.75cm²

I will learn to calculate the area of a triangle Level 5

Challenge Objective: I will learn to calculate the area of compound shapes Level 5+

Rectangle A

Rectangle B

16cm²

48cm²

19cm²76cm²

36cm² 88cm²

64cm² 136cm²35cm²64cm²

Progress SheetI can calculate the area of squares and

rectangles by counting squares Level 3I can calculate the area of squares and

rectangles using lengths Level 4I can calculate the area of a triangle

Level 5I can calculate the area of compound

shapes Level 5+

Red Question

Calculate the area of the shape below

Pink Question

Salmon Question

Purple Question

Yellow Question

Gold Question

Mint Question

Blue Question

Green Question

Answer of 16cm²

Area of compound shapes

Answer of 76cm²

Answer of 19cm²

Answer of 48cm²

Answer of 36cm²

Answer of 88cm²

Answer of 64cm²

Answer of 35cm²

Answer of 136cm²

Area of rectangles and triangles

Education

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