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8 、 9 的分与合

8 、 9 的分与合. 学习目标： 1. 使同学们知道 8 、 9 的组成与分解。 2. 能够熟练写出 8 、 9 的组成。. 每次移动一个 , 可以分成几和几 ?. 8. 8. 1. 7. 7. 1. 8. 8. 2. 6. 6. 2. 8. 8. 3. 5. 5. 3. 8. 4. 4. 把 9 个 翻一翻，再填空。. 9. 9. 1. 8. 8. 1. 9. 9. 2. 7. 7. 2. 9. 9. 3. 6. 6. 3. 9. 9. 4. 5. 5. 4.

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8 、 9 的分与合

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  1. 8、9的分与合

  2. 学习目标： 1. 使同学们知道8、9的组成与分解。 2. 能够熟练写出8、9的组成。

  3. 每次移动一个,可以分成几和几?

  4. 8 8 1 7 7 1

  5. 8 8 2 6 6 2

  6. 8 8 3 5 5 3

  7. 8 4 4

  8. 把9个 翻一翻，再填空。

  9. 9 9 1 8 8 1

  10. 9 9 2 7 7 2

  11. 9 9 3 6 6 3

  12. 9 9 4 5 5 4

  13. 摆一摆 八个五角星分成两堆，你会怎样分？

  14. 摆一摆 7 6 5 4 3 2 1 8 1 2 3 4 5 6 7

  15. 摆一摆 九个圆纸片分成两堆。你会怎样分？

  16. 摆一摆 8 7 6 5 4 3 2 1 9 8 1 2 3 4 5 6 7

  17. 3 2 5 7 8 9 2 5 填一填 8 9 6 4

  18. 哪两张卡片上的点子数合起来是8?哪两张合起来是9?哪两张卡片上的点子数合起来是8?哪两张合起来是9?

  19. 总结： 通过本节课的学习，同学们学会8、9的组成了吗？

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