Summary

You should now know that:
* Area is measured in square units such as square metres ($c{m^2}$), square centimetres ($c{m^2}$) and square millimetres ($m{m^2}$).
* The conversion factors for area are:
$1c{m^2} = 100m{m^2},1{m^2} = 10000c{m^2}$
* The formula for the area of a rectangle is:
area = length $\times$ width.
* The perimeter of a shape is found by adding the lengths of all the sides together.
* To find the area of a compound shape:
1) split the shape up into squares and/or rectangles
2) work out the area of each individual square or rectangle
3) add together the individual areas to get the total area.
* The formula for the volume of a cuboid is:
volume = length $\times$ width $\times$ height.
* The surface area of a cube or cuboid is the total area of all its faces.
You should be able to:
* Convert between units for area, for example, ${m^2},c{m^2}$ and $m{m^2}$.
* Derive and use formulae for the area and perimeter of a rectangle.
* Calculate the perimeter and area of compound shapes made from rectangles.
* Derive and use the formula for the volume of a cuboid.
* Calculate the surface area of cubes and cuboids from their nets.
* Understand everyday systems of measurement and use them to estimate and calculate.
* Work logically and draw simple conclusions.