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城西小学 徐玲玲

城西小学 徐玲玲. 12. 1. 11. 10. 2. 9. 3. 8. 4. 7. 5. 6. 12. 1. 11. 10. 2. 9. 3. 8. 4. 7. 5. 6. 角. 顶点 .. 边. 边. 边. 顶点 .. 边. 顶点 .. 边. 边. 边. . 顶点. 顶点 .. 边. 边. 边. 1. 找出哪些是角?哪些不是角?. ( ). √. ( ). √. ( ). ×. ( ). ×. ( ). ( ). ×. √. 游戏一:火眼金睛. 4. 1. 3. 2.

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城西小学 徐玲玲

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  1. 城西小学 徐玲玲

  2. 12 1 11 10 2 9 3 8 4 7 5 6

  3. 12 1 11 10 2 9 3 8 4 7 5 6

  4. 顶点. 边 边 边 顶点. 边 顶点. 边 边 边 .顶点 顶点. 边 边 边

  5. 1.找出哪些是角?哪些不是角? ( ) √ ( ) √ ( ) × ( ) × ( ) ( ) × √

  6. 游戏一:火眼金睛 4 1 3 2

  7. 游戏一:火眼金睛 1

  8. 游戏一:火眼金睛 2

  9. 游戏一:火眼金睛 3

  10. 游戏一:火眼金睛 4

  11. 游戏一:火眼金睛 4 1 3 2

  12. 猜一猜,比一比 (1) (2) 角(1)小,角(2)大

  13. (1) (2)

  14. (3) (2) (1)

  15. 你知道下面这个图形中一共有多少个角么? 这里一共有( )个角 3

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