1 - Getting Started ~3 mins
A tiny ladybird sits beside a long metre stick. Could we measure a ladybird with that stick? What do we need instead?
Hold up your ruler. Today we learn the small unit that lives on it: the centimetre.
2 - Watch and Notice ~8 mins
Three small things on the ruler. For each one, watch the two careful steps: zero at the start, then we read the number at the other end.
Same two steps every time: zero at the start, read the end.
3 - Try It Together ~8 mins
One friend comes to the board. We help them put zero at the start on the rubber, then read the end.
Zero at the start, read the end
4 - Measure and Draw in Your Copy ~6 mins
In your maths copy, measure two small things from your desk with your ruler. Write each length in whole centimetres.
Then draw one careful straight line with your ruler.
5 - Class Challenge ~9 mins
We measure these together: a crayon, a lolly stick and a pencil.
One friend at the board. Put zero at the start every time, then read the mark at the far end. We agree, then Check.
Measure in whole centimetres
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