New
New
Year 1

Counting back from 20

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

New
New
Year 1

Counting back from 20

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

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Lesson details

Key learning points

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

Keywords

  • 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 misconception

Knowing the number before when counting backwards.

Giving 2 or 3 numbers to establish a pattern then reducing to 2 and then just the given number.

This lesson can be taught with the slides as teacher notes and you may decide not to show them to pupils. Repeat commonly missed numbers in tasks and checks. The more opportunities to practice, the more secure pupils will become.
Teacher tip

Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

Lesson video

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6 Questions

Q1.
What is the number of counters shown here?
An image in a quiz
5
Correct answer: 6
4
Q2.
How many legs does this spider have?
An image in a quiz
6
7
Correct answer: 8
Q3.
Which of these sentences is correct?
An image in a quiz
"Set B has one more counter than Set A"
Correct answer: "Set B has one less counter than Set A"
Q4.
Which of these sentences is correct?
An image in a quiz
"Set B has one more counter than Set A"
Correct answer: "Set B has one less counter than Set A"
Q5.
Which of these sentences is correct?
An image in a quiz
Correct answer: "Set A has one more cup than Set B"
"Set A has one less cup than Set B"
Q6.
What number comes one place before 20?
20
21
Correct answer: 19
10

6 Questions

Q1.
Counting back from 19, what is the next number?
An image in a quiz
20
19
Correct answer: 18
17
Q2.
Counting back from 14, what is the next number?
An image in a quiz
15
14
Correct answer: 13
12
Q3.
What is one less than 17?
An image in a quiz
18
17
Correct answer: 16
15
Q4.
If I count backwards from 9, what numbers would I say?
An image in a quiz
Correct answer: 8, 7, 6, 5, 4, 3, 2, 1
8, 7, 5, 4, 3, 2, 1
10, 11, 12, 13, 14
8, 7, 4, 5, 6
Q5.
Continue the countdown. What would come next?
An image in a quiz
8
7
Correct answer: 6
5
Q6.
What is one fewer than six?
An image in a quiz
7
6
Correct answer: 5

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