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Long ago, people measured things using their own feet and hands.

Long ago, people measured things using their own feet and hands.

Before rulers, people counted how many feet long a room was by walking heel to toe. That's why we still have a length called a 'foot'!

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A ruler helps us measure how long or tall something is. A ruler helps us measure how long or tall something is. We measure how tall you are in centimetres and metres. We measure how tall you are in centimetres and metres. One metre is about as long as a big step or a baseball bat. One metre is about as long as a big step or a baseball bat. We use a scale to measure how heavy something is. We use a scale to measure how heavy something is. The tallest tree is so big you'd need a very long tape to measure it. The tallest tree is so big you'd need a very long tape to measure it.