Yr 7 Unit 6 Week 3 - Lesson 1

• Mathematics
• Lower Secondary (Key Stage 3)

Yr 7 unit 6 Week 1 - Lesson 1

Starter

Calculate the following expressions:

          

3 + 4 x 5	3 x 4 + 5	3 x (4 + 5)	3 x 4 + 4 x 5
18 ÷ 2 + 6	18 ÷ 6 - 2	18 ÷ (3 + 6)	18 ÷ 3 + 13

What do we mean by the perimeter of a shape?

What Is The Perimeter Of A Shape?

The perimeter of a closed shape, meaning a shape where all the sides are linked together and there are no gaps, is the distance all the way around it. 

What Is The Perimeter Of A Shape?

The perimeter of a closed shape, meaning a shape where all the sides are linked together and there are no gaps, is the distance all the way around it. 

From some starting point, it is the distance all the way around it until we get back to this point.

The Perimeter Of A Square

The Perimeter Of A Rectangle

The Perimeter Of A Square

The Perimeter Of A Square

The Perimeter Of A Square

The Perimeter Of A Square

The Perimeter Of A Square

The Perimeter Of A Square

Write an expression for the perimeter p of a square with length l cm.

1. p = l
2. p = l + l
3. p = l + l + l
4. p = l + l + l + l

Calculate the perimeter of a square with side length 3cm.

1. 12cm
2. 6cm
3. 81cm
4. 27cm

Calculate the length of the side of a square whose perimeter is 20cm.

1. 10cm
2. 5cm
3. 4cm
4. 20cm

The Perimeter Of A Rectangle

The Perimeter Of A Rectangle

The Perimeter Of A Rectangle

The Perimeter Of A Rectangle

The Perimeter Of A Rectangle

The Perimeter Of A Rectangle

The Perimeter Of A Rectangle

Write an expression for the perimeter p of a rectangle with length l cm and height h cm.

1. p = l + h
2. p = 2l + h
3. p = l + 2h
4. p = 2l + 2h

Calculate the perimeter of a rectangle with side length 7cm and height 3cm.

1. 14cm
2. 9cm
3. 10cm
4. 20cm

Calculate the length of a rectangle with height 3cm if the perimeter is 16cm.

1. 3cm
2. 4cm
3. 5cm
4. 6cm

Calculate the height of a rectangle with length 4cm if the perimeter is 12cm.

1. 2cm
2. 3cm
3. 4cm
4. 5cm

1. 2p + 2q
2. 4p + 2q
3. 2p + 1q
4. 6p + 6q

1. 3p
2. 4p
3. 12p
4. 16p

1. 4p
2. 6q
3. 8q
4. 12q