Area, perimeter, position and direction
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Threads
Why this why now
This unit builds on previous work on area and perimeter, introducing the formula for the area of a parallelogram and for a triangle. Pupils calculate the areas from given measurements and missing measurements when given the area of a shape. They also construct shapes by plotting positions on a full coordinate grid, with simple translations and reflections. This work will be developed further in a unit focusing on plotting coordinates in different contexts.
Prior knowledge requirements
- Measure length using standard units
- Understand basic properties of 2D shapes
- Use language of direction and identify turns
Threads
Why this why now
This unit builds on previous work on area and perimeter, introducing the formula for the area of a parallelogram and for a triangle. Pupils calculate the areas from given measurements and missing measurements when given the area of a shape. They also construct shapes by plotting positions on a full coordinate grid, with simple translations and reflections. This work will be developed further in a unit focusing on plotting coordinates in different contexts.
Prior knowledge requirements
- Measure length using standard units
- Understand basic properties of 2D shapes
- Use language of direction and identify turns
Area, perimeter, position and direction
In this unit pupils will explain how to calculate the area of a parallelogram and a triangle. They will describe the relationship between scale factors and side lengths. They will describe positions in all 4 quadrants.
10 lessons in unit
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