Math: algebra

20/10

Prepare 20 cubes. Put them all in front of the baby. Say: let’s us do some division. We use division when we want to distribute things equally. Let’s count how many cubes are there. Point to each cube while counting: 1,2,3,…20. Say: There are 20 cubes. Show 20 fingers: first show 10 and then 10 again. Let’s us divide them by 10. It means we have to put 10 cubes in a row. You count with me: 1,2,3,4,5,6,7,8,9,10. Take the cubes one by one while counting and put them in one straight row. Stop when you reach 10. Show 10 fingers and say again ten! See we still have some cubes. Let us put them in another row beneath the first one. Remember we need to put only 10 cubes. Let’s count again! 1,2,3,4,5,6,7,8,9,10. Show 10 fingers. In the second row there are ten cubes as well. See there are no more cubes left. How many rows do we have now? 1,2. Two! Show two fingers. Now we solved a problem. 20 divided by 10 equals 2. Repeat the same with towers.

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