MATH DEVELOPMENT ALBUM
3.10 HANDFUL EXCHANGING
MATERIALS:
The whole bank.
CONTROL OF ERROR:
The teacher.
AIM:
To understand the role of exchange.
POINT OF INTEREST:
Taking as many beads as possible into their hands.
PRESENTATION:
1. Analyzing the exchanging rule at the beginning. The rule is that we can exchange when we have
10 units, ten, and hundred. Look at ten and explain how it was formed and count out 10 ones.
2. Repeat step 1 to 100-th and 1000-th.
3. One child took as many as tens from the tens container.
4. The child counts 10 tens, then ready to change.
5. The child hold the tens and change a hundred beads from you while the second child said
"exchange".
6. Repeat the activity.
7. When the child does not have enough beads to change, tell the child why he cannot
exchange.
8. Change the role.
NOTE:
1. Use two hands to exchange.
2. Alternative way: you set up the first numeral cards.
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