Beginner
40 mins
Teacher/Student led
+80 XP
Teacher-led from the board. Pupils do not need a device, but can follow on one.
What you need:
ten-frame-and-counters

Combining Two Sets, How Many Altogether?

Pupils join two separate groups of objects and count the total number in the combined group. They learn to use the word altogether to name this total through demonstrations with counters and drawing activities in their copybooks.

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    Ten frame

    1 - Getting Started ~3 mins

    A plate with 3 red apples, the word and, a plate with 2 yellow bananas, the word make, and an empty basket with a question mark. Under the plates are the numbers 3 and 2.Look at the picture on our board: 3 apples and 2 bananas. Altogether means how many when we put both groups together. I wonder how many pieces of fruit that is altogether? How could we check?

    2 - Watch and Notice ~7 mins

    Two groups of counters have joined on the ten-frame. Find each group, then count how many there are altogether.

    Build each one on your own ten-frame too: the first group in red, the second in yellow.

    3 - Try It Together ~7 mins

    Everyone builds at their own table, on a ten-frame with red and yellow counters.

    Listen to the story. Put the first group on your frame in red. Put the second group in yellow. Count how many there are altogether.

    Then one of us builds it on the board. Check that your frame looks the same.

    We will build 2 and 3, then 4 and 2, then 5 and 4, then 1 and 6.

    Join two sets

    4 - Draw the Dots in Your Copy ~4 mins

    COPYBOOK MOMENT

    In your maths copy, draw 4 apples and 2 bananas as simple dots, one dot for each piece of fruit. Then write how many pieces of fruit there are altogether.

    Pupil practice
    Module 2 · Addition Within 20: Combining, Plus and Equals Number
    Lesson 13 · Combining Two Sets, How Many Altogether?
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