Intermediate
40 mins
Teacher/Student led
+65 XP
Teacher-led from the board. Pupils do not need a device, but can follow on one.

Back Through Ten: Break the Jump at the Ten

Learn to subtract numbers that cross ten by first jumping back to ten on the number line, then taking the rest. Use examples like thirteen minus five to see how ten acts as a helpful stepping stone.

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    Number line jumps
    Number line jumps

    1 - Getting Started ~3 mins

    Illustration for Getting StartedThirteen grapes at little break. Liam ate five of them. Are more than ten left, or fewer? How do you know?

    2 - Watch and Notice ~7 mins

    These take-aways go past ten. We split each one into two jumps. The first jump stops exactly on ten.

    Ten is our stepping stone: a helpful stop on the way down. The first jump is how many it takes to land on ten. The second jump is what is left.

    For each line, be ready to say the two jump sizes.

    3 - Try It Together ~7 mins

    One pupil plots on the board. The class watches the jumps and is ready to agree or correct. We stay on start 13 and try these take-aways in turn: 13 − 5, then 13 − 4, then 13 − 6, then 13 − 7. Each time, jump back to ten first, then take what is left.

    Jump back through ten

    4 - Write the Sentence in Your Copy ~4 mins

    COPYBOOK MOMENT

    In your maths copy, draw a 0 to 20 line and show 13 − 5 with two jumps that stop at ten. Then write this take-away sentence once, carefully:

    • 13 − 5 = 8

    5 - Class Challenge ~8 mins

    Today we work through these take-aways together: 11 − 3, then 12 − 4, then 14 − 6. One pupil at the board. The class watches and confirms. Stop at ten on the way down each time.

    Back through ten

    Pupil practice
    Module 3 · Subtraction Within 20: Take Away and Difference Number
    Lesson 35 · Back Through Ten: Break the Jump at the Ten
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