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**Scheme of work: GCSE Foundation: Year 9: Term 4: Perimeter and Area**

- Choose and use appropriate standard units to estimate and measure length/height in any direction (m/cm); mass (kg/g); temperature (°C); capacity (litres/ml) to the nearest appropriate
- unit, using rulers, scales, thermometers and measuring vessels
- compare and order lengths, mass, volume/capacity and record the results using >, < and =
- measure, compare, add and subtract: lengths (m/cm/mm); mass (kg/g); volume/capacity (l/ml)

- know and apply formulae to calculate:
- rectangles
- rectilinear composite shapes
- area of triangles
- parallelograms
- trapezia
- calculate the perimeters of 2D shapes, including composite shapes;

- Perimeter is a measure of length around the outside of a shape, whereas area is the space on a surface.
- Students should be given the opportunity to derive formulae to calculate the area and perimeter of shapes.
- Area is measured in square units.
- Demonstrate a triangle as being half a rectangle so students know to use the perpendicular height in their calculation.
- Demonstrate a parallelogram as having an equal area to a rectangle.
- To calculate the area of composite rectilinear shapes have students break them up in different ways.

- Students often confuse area and perimeter.
- Students can forget to include correct units when stating an area or perimeter.
- When calculating the area of a triangle or parallelogram students tend to use the slanted height rather than the correct perpendicular height.

September 22, 2023

A-Level Scheme of work: Edexcel A-Level Mathematics Year 2: Pure 2: 3D Vectors

September 21, 2023

Edexcel A-Level Mathematics Year 2: Pure 2: Parametric Equations