National curriculum content
- Pupils use their knowledge of place value and multiplication and division to convert between standard units
- Pupils calculate the perimeter of rectangles and related composite shapes, including using the relations of perimeter or area to find unknown lengths
- Missing measures questions such as these can be expressed algebraically, for example 4 + 2b = 20 for a rectangle of sides 2 cm and b cm and perimeter of 20cm
- Pupils calculate the area from scale drawings using given measurements
- Perimeter of rectangles
- Perimeter of rectilinear shapes
- Perimeter of polygons
- Area of rectangles
- Area of compound shapes
- Estimate area
What we want children to know
- Convert between different units of metric measure (for example, kilometre and metre; centimetre and metre; centimetre and millimetre)
- Measure and calculate the perimeter of composite rectilinear shapes in centimetres and metres
- Calculate and compare the area of rectangles (including squares), and including using standard units, square centimetres (cm2 ) and square metres (m2 ) and estimate the area of irregular shapes
What skills we want children to develop
Use knowledge to solve Reasoning and Problem Solving questions such as:
Two shapes are made up of squares of the same size
Jack says these 2 shapes have the same area.
Rosie says the 1st shape is bigger as it takes up more space.
Who is correct?
- Which measurement would be more effective to use to measure book/playground?
- How could I calculate a missing side of a rectangle/square?
- Show your method of working out the area of a compound shape
- What do you need to know to estimate the area of an irregular shape?
- Can I work out the missing side from a compound shape using the measurements provided?