Show one more and one less than a number using representations
I can use representations to show that the number before a given number is one less and the number after a given number is one more.
Show one more and one less than a number using representations
I can use representations to show that the number before a given number is one less and the number after a given number is one more.
Lesson details
Key learning points
- The number before a given number is one less than it.
- The number after a given number is one more than it.
- A staircase of blocks can be used to highlight one more and one less.
Keywords
One more - The number after a given number is one more than it.
One less - The number before a given number is one less than it.
Before - A number that is before another comes earlier in our count.
After - A number that is after another comes later in our count.
Common misconception
Children may confuse one more and one less, particularly when finding missing numbers.
Use the stem sentence ___ is one more / one less than ___ because it comes after / before it in our count.
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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