Dividing a paper into 10 boxes and using kidney beans.
8 + 2 = 10
2 more to 8 is 10
We can use 6 beans, and thus it will be...
6 + 4 = 10
4 more than 6 is 10.
Children will learn alot about the numbers without explicit teaching.
I agree that we should start from concrete and then, move to abstract and this activity will definitely engaged children.
8 on one of the 10 frame and 6 on the other 10 frame.
Then, to get the answer.
1. Count it all.
2. Making 10. (10) + (4)
3. Counting on from 8... adding another 6 more.
4. 5+5+4
5. Counting in twos, counting all.
6. Counting backwards from 20, because with 2 (10 frames) it adds up to 20. Therefore, it has to be less than 20 (6 less)
7. Double of it. (7+7)
As you can see, a simple addition but there are various methods to derive at the answer.
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