Week 6 MathsArea and Perimeter

3D Shapes

Try solving these anagrams – they are all related to Area and Perimeter• THELNG

• DITHW

• RIPMETREE

• AEAR

• RELATING

Try solving these anagrams – they are all related to Area and Perimeter• THELNG = LENGTH

• DITHW = WIDTH

• RIPMETREE = PERIMETER

• AEAR = AREA

• RELATING = TRIANGLE

Session Aims• Define Area and Perimeter

• Calculate Area and Perimeter in a range of 2D shapes Including triangles

• Understand how to find the Area and Perimeter of compound shapes

• Test prior knowledge of 3D shapes by: Answering quiz questions Identifying edges, corners, and faces Drawing nets of 3D shapes

• What is Perimeter?

• What is Area?

• What is Perimeter?

It is the distance around a 2D shape

• What is Area?

• What is Perimeter?

It is the distance around a 2D shape

• What is Area?

It is the amount of space inside a 2D shape

Calculating Perimeter

7m

7m

3m

3m

Calculating Perimeter

7m

7m

3m

3m

Just add all of the sides together: 7 + 7 + 3 + 3 = 20m

Calculating Area

7m

7m

3m

3m

Calculating Area

7m

7m

3m

3m

Multiply Length by Width: 7 x 3 = 21m²

Compound Shapes• Compound shapes are really just different rectangles joined together.

Just find the area of each part and then add them together.