Study Hub

Study Guides

This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.

Back to Study HubBrowse Year 1 Maths Guides

Year 1 - Maths

Counting back from 20

Counting to and from 20

Unit Summary

In this unit pupils will consolidate counting to 20 and back They will secure their understanding of the teens numbers in a cardinal and an ordinal context.

Lesson Summary

You can count backwards from any number between 0 and 20.

Key Notes

  • Reciting the number words backwards from 20 by rote.
  • Counting backwards from 20 to 0 using manipulatives to support understanding of the number before.
  • Counting back from any number to any number.

Vocabulary To Learn

  • count back: Reciting the numbers in reverse order to count backwards or down from a given number to 20.
  • before: The number before refers to the previous number in the count.

Common Mistakes To Avoid

  • Knowing the number before when counting backwards.

3 Quick Questions (With Answers)

1. Solve this in steps: explain the method from this lesson and why each step matters.

Reciting the number words backwards from 20 by rote. Counting backwards from 20 to 0 using manipulatives to support understanding of the number before.

2. Use this key word in a maths sentence and explain it clearly. 'count back'

Reciting the numbers in reverse order to count backwards or down from a given number to 20. Use this word when showing your method, then check your final answer is reasonable.

3. Spot and fix this common maths mistake.

Mistake: Knowing the number before when counting backwards. Correction: Giving 2 or 3 numbers to establish a pattern then reducing to 2 and then just the given number.

More Lessons In This Unit

Browse all guides in the Year 1 Maths guide library.