Week 6 Maths
Area 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
3m
3m
7m
Calculating Perimeter
7m
3m
3m
7m
Just add all of the sides together: 7 + 7 + 3 + 3 = 20m
Calculating Area
7m
3m
3m
7m
Calculating Area
7m
3m
3m
7m
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.