Area of Compound Shapes
Notes and Guidance
Children learn to calculate area of compound shapes. They need to be careful when splitting shapes up to make sure they know which lengths correspond to the whole shape, and which to the smaller shapes they have created. They will discover that the area remains the same no matter how you split up the shapes. Children need to have experience of drawing their own shapes in this step.
What formula do we use to find the area of a rectangle?
Can you see any rectangles within the compound shapes?
How can we split the compound shape?
Is there more than one way?
Do we get a different answer if we split the shape differently?