28. Area 1 Talk About


1. True or false? a) Area is a measure of the amount of space contained inside a 2-D shape. b) You can measure space with a ruler. c) You can work out the area of a rectangle if you know its length and its width. d) A square metre is bigger than a square centimetre. e) There are 100 square centimetres in a square metre. f) 2 rectangles with different lengths and widths can have the same area. g) The area of a rectangle is calculated by adding the length and the width.


2. If you were about to do the following activities, what would be more important: area or perimeter?


a) Buying carpet for a floor


b) Buying wire to build a fence around your garden


c) Ordering paving stones to build a path around your house


d) Buying enough paint to cover the back wall of your garden


e) Buying grass seed to plant in a new garden


Calculating Area


3. If you were to write a rule about how to work out the area of a rectangle, how would you write it? Try it first with words and when you have done that, change it to symbols.


Strand: Measures 192


Curriculum Objectives: Recognise that the length of the perimeter of a rectangular shape does not determine the area of the shape; calculate the area of regular and irregular 2-D shapes; measure the surface area of specified 3-D shapes.


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