9.05 Order and compare areas

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We can work out the area of a shape by seeing how many squares fit inside it. Try this question. 

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When we compared length, we looked at which object was shorter, or longer than the other. We used number lines or lines to help us do this. We can do a similar thing with area, but instead of lines, we use squares. 

Line	Square

 

When we compare area, we can use a square unit to do this. So if we are working with centimeters, we use a square measuring $1$1 cm x $1$1 cm. We can use the same method if we working with meters, but instead using a $1$1 m x $1$1 m square.

In this video, we'll compare some shapes using a $1$1 cm unit square.

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Question 1

 

Learn about comparing areas with different units 

If two areas have the same value, but use different units, then we can compare them using their units.

For example, $4$4 square meters is larger than $4$4 square centimeters because a meter is longer than a centimeter.

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Question 2