6th class

Area

Can you remember how to find the area of

a regular square or rectangle?

What do you already know about Area?

What are the units of measure in Area?

What does the word AREA mean?

What is the difference between perimeter

and area?

Active Task 1

You will need: 5 identical sized squares (you could cut 5 pieces of paper from your maths copy 4cm x 4 cm)

Task:

How many different combinations / configurations can you make with the five squares?? Record your finding in your Maths copy.

Rule:A side of each square must always be touching another square.

Task adapted from Operation Maths 6 (Edco Learning (Task 28. Pentominoes)

One samplecombination:

Active Task 2

You will need: 5 identical sized squares (same as previous activity)

Task:

Create as many letters of the alphabet as possible using the 5 squares

Rule:A side of each square must always be touching another square.

Task adapted from Operation Maths 6 (Edco Learning (Task 28. Pentominoes)

One samplecombination:

What is the difference between perimeter

and area?

• The perimeter is the sum of all the side lengths of a shape.

• The area is the amount of 2-dimensional space a shape occupies.

Take a look at the picture to understand it better:Imagine this is a field of grass with a fence around the outside.

The perimeter is the length of the fence (brown outline)

The area of this square is the amount of grass (green inside)

• Let's try an example......find the area and perimeter of the below shape

5cm

7cm

5cm

7 cmPerimeter (outside) = all the sides added together

Perimeter = 5cm + 5cm + 7cm + 7cm

Perimeter = 24cm

Area = length x width

Area = 7cm x 5 cm

Area = 35cm2

8.5m

7.5m 5.7m

11.3m

17.8m

4.5m

8.16 m

14.01m

Calculate the Area and Perimeter of the following rectangles

Remember:Area =

Length x width

Perimeter = Add all the

sides together

D

C

B

A

With decimals,complete as whole numbers then add

back in your decimals if it is easier!!

8.5m

7.5m

5.7m

11.3m

17.8m

4.5m

8.1 m

14.1m

A =63.75m2

P = 32m

A =64.41m2

P= 34 m

A = 114.21m2

P = 44.4m

A = 80.10m2

P = 44.6m

Answers to previous page

How would you find the area of the following shape?

9m

3m7m

12m

GOT IT

1. Divide it into regular rectangles.

9m

3m7m

12m

GOT IT

9m

3m7m

12m

5m

6m

2. Fill in the new lengths or widths

GOT IT

9m

3m7m

12m

5m

6m

45m²

42m²

Area 45m2 + 42m2

= 87m²

Find the area of the following shape using the same method of dividing it into smaller rectangles

Image taken from Planet Maths 6 p. 113

8m

7m

What is the area of the shaded section?

2m

3m

1. Find the area of the full shape

(8m x 7m)2. Find the area of the inner

shape(3m x 2m)

3. Subtract the unshaded region from the shaded region(8m x 7m) - (3m x 2m)

Find the area of the shaded area in the following questions. Use the previous page to help you!!

To find area we multiply length x width How do you think you would find the surface area of a cube?

How do you think you would find the surface area of a cube?

1. Calculate the area of each face:

6cm x 6cm = ?

= 36cm²

GOT IT

How do you think you would find the surface area of a cube?

1. Each face is 36cm²

2. How many faces on the cube?

36cm² x 6 =

216cm²

GOT IT

Calculate the surface area of the following cubes :

A. 5cm

B. 10cm

C. 9.5cm

D. 22cm

E. 16.2cm

F. 27.6cmLength x width x height

Active Task 3

You will need:

• Maths copybook

• Pencil

• Colouring Pencils / Markers / Crayons

Task:

1. Write your name using the boxes in your Maths Copy

2. Colour in the letters of your name

3. Calculate the area of your name (Each box is 1cm2 ) -For example Area for Eve = 31cm2

4. Try do it with a variety of names of family members or classmates.

One samplecombination:

Active Task 4You will need:

• Maths copybook

• Pencil

• Ruler

• Colouring Pencils / Markers / Crayons

Task:

1. Design your ideal house floor plan/ aerial view in your maths copybook

(it can include anything at all – swimming pool, 10 bedrooms, games room, gym, dog's

bedroom.....use your imagination)

2. Make sure you use your ruler to make your different areas / rooms

One samplefloor plan:

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