🔢 Mathematics · Number Representation & Place Value
The teen numbers
Understand that the teen numbers (11–19) are composed of ten ones and some further ones (early place value)
Typical age: 5–7 years
“If your child has 14 building blocks, can they see it as one full tower of 10 and 4 left over — understanding 'teen' numbers as ten-and-some-more?”
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- A Ten Is Ten OnesREQUIRED
Understanding 10 as a bundle builds on understanding teen numbers as 'a ten and some ones'
- The two digits of a two-digit numberREQUIRED
General two-digit place value extends from understanding teen number composition
- Spotting mathematical patterns
Recognising teen numbers as 'ten and some more' exercises noticing structure