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Comparing and ordering measurements

Compare and order lengths, mass, and capacity and record results using >, <, and =

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What a learner can do afterwards

  • Measure two objects and write 45cm > 32cm
  • Order three containers by capacity after measuring each
  • Use = when two measurements are the same

The lesson

When you measure something's length, mass, or capacity, you get a number, like 12 cm, 3 kg, or 5 cups. You can compare two measurements the same way you compare numbers. Use > for bigger, < for smaller, and = when they match exactly.

Red ribbon15Blueribbon8Greenribbon20
These ribbons were measured in cm. Which one is the longest? Which is the shortest?
Try it together

Mia measures her pencil at 8 cm and her crayon at 5 cm. Since 8 is bigger than 5, she writes 8 cm > 5 cm. The pencil is longer than the crayon.

>
Good to know

Both < and > point toward the smaller number, like a hungry mouth opening wide for the bigger amount. If two measurements are exactly the same, use = instead.

Measure, compare the numbers, then write >, <, or = to show which is bigger, smaller, or the same.

Watch it

Where it sits

Where this leads

Jobs that lean on this skill. Follow one to see everything it is built on.

Then practise

8 questions wait behind this lesson, each with its answer explained. Every answer feeds the sky: stars light as they are learned, and dim when it is time to come back.

Comparing and ordering measurements · Mathematics, ages 6 to 7 · LightMySky