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Counting objects to 20

Count a set of objects to answer 'how many?' for sets up to 20 (arranged in lines, arrays, circles, or scattered)

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What a learner can do afterwards

  • Accurately count up to 20 objects in a line
  • Count up to 10 scattered objects without losing track
  • Given a number 1–20, count out that many objects from a larger set

The lesson

You already know how to count one thing at a time. Now you will count bigger groups, all the way up to 20.

Tap each star and count out loud.
Count each star one by one. Stop at 16.
Try it together

Mia counts her apples. She touches each apple once and says 1, 2, 3, 4, 5, 6, 7, 8. Eight apples, even though they are spread out.

Tap each apple and count out loud.
Good to know

If someone asks for 12 blocks, count out 12 and stop. Do not grab extra blocks by accident.

Count every object once, all the way up to 20, no matter how they are arranged.

Watch it

Where it sits

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.

Counting objects to 20 · Mathematics, ages 5 to 6 · LightMySky