Counting in tens - decade numbers
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Why this why now
Patterns in the number system start from 20 but rely on children knowing the sequence of the decade numbers. This unit prepares them for counting up to 100 as they know the numbers to 20 and will be able to apply this knowledge between the decades in the following unit once the sequence of the decade numbers is secure.
Prior knowledge requirements
- Count in ones to at least 20
- Recognise and name decade numbers
- Understand counting patterns involving tens
Threads
Why this why now
Patterns in the number system start from 20 but rely on children knowing the sequence of the decade numbers. This unit prepares them for counting up to 100 as they know the numbers to 20 and will be able to apply this knowledge between the decades in the following unit once the sequence of the decade numbers is secure.
Prior knowledge requirements
- Count in ones to at least 20
- Recognise and name decade numbers
- Understand counting patterns involving tens
Counting in tens - decade numbers
In this unit pupils will extend their counting to counting the decade numbers which will later be known as multiples of ten and making representations of them using a variety of different manipulatives.
5 lessons in unit
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