This worksheet teaches students to find the perimeter of shapes by adding their sides and the area by counting whole and half squares, using both informal and formal units. The worksheet is split into warm-up questions, standard questions and then extension questions to test you.
The concepts it covers:
- Perimeter is the distance all the way around the edge of a shape. Add the lengths of all the sides.
- Area is the amount of surface a shape covers. Count the squares that cover it.
- Two half squares make one whole square.
- Informal units (pencils, hand spans) can measure, but formal units (cm, m, square units) give everyone the same answer.
What your child will practise:
- Finding perimeters by adding side lengths.
- Finding areas by counting whole and half squares.
- Deciding whether a problem needs perimeter or area.
- Comparing the areas of different shapes.
- Drawing different rectangles with the same area.
Every section opens with a worked example, and the download includes a full answer key with step-by-step solutions and teaching notes on the mistakes students most commonly make.
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