Children in grade two can't write yet, and addition and subtraction within 10 won't count. Teach him to write and cry. Usually naughty. What should I do?

For example: prepare some sweets, draw lots (sign the formula), and count the sweets according to the result of the formula, and there will be rewards.

If you write, two people cut paper-cut stones, and whoever wins will write a stroke. If you can write a word completely, you will be rewarded.

The reward is first a small sticker, and the accumulated amount is exchanged for a substantial reward.