The length of the sides of Square B is 4 times the length of the sides of Square A. How many times greater is the area of Square B than Square A?
Square A Square B
Units of Measurement
1. Out in the yard, use a piece of chalk to draw a square centimetre and a square metre beside it (use a metre stick). a) Can you work out how many cm2
would fi t into 1m2
b) List 5 things whose area would be measured in cm2 c) List 5 things whose area would be measured in m2
.
2. a) Estimate the areas of these objects. Use the most appropriate unit. b) Measure the objects afterwards to see how close your estimates are. c) What instruments would you use to measure these objects?
Object
Maths book Classroom Maths copy Whiteboard Art paper School yard