Perimeter and area
Why this, why now
In this unit pupils investigate how to calculate the area and perimeter of rectilinear shapes, and composite shapes using rectangles and triangles. They will also derive simple area formulae.
Prior knowledge requirements
- Ardaydu waa inay yaqaanaan aasaaska maadada.
- Ardaydu waa inay awoodaan inay raacaan tilmaamo fudud.
Unit 6 / 10
Perimeter and area
In this unit pupils investigate how to calculate the area and perimeter of rectilinear shapes, and composite shapes using rectangles and triangles. They will also derive simple area formulae.
12 lessons- Problem solving with perimeter and area
- Perimeter with composite rectilinear shapes
- Calculating missing side lengths from the area of a trapezium
- Calculating missing side lengths from the area of composite rectilinear shapes
- Area of a triangle
- Area of a trapezium
- Using the formula for the area of a triangle
- Calculating missing lengths with perimeter of polygons
- Checking understanding of perimeter and area
- Area of composite rectilinear shapes
- Finding the perimeter of polygons
- Securing understanding of perimeter and area