Comparing and measuring · Pre-K

In Pre-K you learn: longer, shorter, heavier and lighter.

Measuring tells us how long, how heavy or how much something holds. First we compare — longer or shorter, heavier or lighter, more or less — and then we measure with rulers, scales and jugs, using units like centimetres, kilograms and millilitres.

Key facts

  • When you use a ruler, line the end of the object up with 0.

Worked examples

Example 1

Which is heavier: a watermelon or a strawberry?

Answer: A watermelon

Other years