Summary
In “Twelve!,” the Numberblocks build a teen number as a full ten and some extra ones. A full episode (4:35) from the BAFTA-winning maths series — quick to drop into a maths warm-up or centre.
Viewer safety
All ages
Common Sense Media — not yet ratedIMDb Parents Guide — not yet rated
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Teaching resources
Discussion questions
Discussion
“Twelve!” helps children build a teen number as a full ten and some extra ones.
- How many tens and how many ones make this teen number?
- Why do teen numbers all start with a ten?
- What is ten and three more?
Quick work-a-long
Vocabulary: teen, ten, ones, place value.
Try it: Show a teen number with ten counters in one pile and the extra ones in another.

