Mathematics
Intermediate
50 mins
Teacher/Student led
+80 XP
What you need:
IWB/Projector/Large Screen

Patterns in the 2, 4, 5 and 10 Tables

Explore the visual patterns the 2, 4, 5 and 10 times tables make on a hundred square. Use these patterns to recall facts and discover that the 4s are always double the 2s.

Teacher Class Feed

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    1 - Getting Started ~4 mins

    Illustration for Getting StartedLook at these three numbers on the board: 15, 25, 40. Each one is an answer in the five times table. What do you notice about the digit at the very end of each of them? And what about the ten times table — what do all its answers end in?

    2 - Watch and Notice ~10 mins

    Here are five hundred squares, each with one set of multiples shaded: fives, tens, twos, then fours. Look at where the shaded squares sit and the pattern they make.

    3 - Try It Together ~10 mins

    Today we shade and read each table's pattern together, in this order: first the 2s, then the 10s, then the 5s, then the 4s. Each time, a pupil comes to the board to shade the multiples, and then the whole class says what shape the pattern makes and what the answers end in. Watch for the moment when the 4s land right on top of the 2s.

    Shade the table, read the pattern

    4 - Write the Fours in Your Copy ~3 mins

    COPYBOOK MOMENT

    In your maths copy, write out the 4 times table all the way to 4 × 10, one fact under the other. Then go back and circle each answer that is also in the 2 times table. When you have finished, look at which answers you circled — you will spot the doubling link for yourself.

    5 - Class Challenge ~8 mins

    Now we shade each table as a whole class, working up through four rounds: the 2s, then the 10s, then the 5s, then the 4s. A pupil shades the multiples, we press Check to confirm the grid is right, and the class calls out one fact from that table they could work out from its pattern.

    Shade each table and check

    Pupil practice
    Module 2 · The Four Operations: Mental and Written Number
    Lesson 21 · Patterns in the 2, 4, 5 and 10 Tables
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