1 - Getting Started ~3 mins
I had 5 pencils on the desk. Watch — 2 roll into the box. Fewer now. One of these signs means put two groups together. The new one means something left. What do you think it tells us to do?
2 - Watch and Notice ~8 mins
Three take-aways on the board. For each one, watch the start amount, then what is left after we take some away. Be ready to say: ___ take away ___.
First: 5 pencils, 2 into the box. Then: 7 cubes in the tub, 3 for the art table. Last: 9 lunch spots, 4 friends already sitting.
3 - Try It Together ~9 mins
Your turn with me on the ten-frame. First number on, second number slides off. We start with 4 − 1. After each one we say: ___ take away ___.
Build the take-away
4 - Write the Minus Sign in Your Copy ~2 mins
In your maths copy, write these two take-aways, forming the − sign carefully:
- 5 − 2
- 7 − 3
5 - Class Challenge ~6 mins
Four quick take-aways. Work out what is left, then show just that on the empty frame. The pupil at the board taps Check; the class watches and agrees aloud. Ready: 4 − 1 → 6 − 2 → 8 − 5 → 10 − 4.
Take away on the ten-frame
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