分数比较与小数转换:通过Geogebra演示分数比较及转换方法

分数比较与小数转换:通过Geogebra演示分数比较及转换方法
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2023-11-02 21:07
这个范例演示了如何通过Geogebra软件将分数转换为小数并进行比较。核心数学概念包括分数、小数、比较和转换。作图要点包括使用Textfield、SpeechBubbleRight、Polygon等命令创建输入框和图形对象。适合小学5-6年级学生用于学习分数比较和转换技能。

GeoGebra 命令及参数

  1. Textfield(input2) → InputBox2
  2. Textfield(input1) → InputBox1
  3. SpeechBubbleRight(PBubbleHilde, 10, 1.7) → BubbleHilde1
  4. SpeechBubbleRight(PBubbleHilde + (0, 1), 11.3, 1.4) → BubbleHilde2
  5. SpeechBubbleLeft(PBubbleBert, 7.6, 1.7) → BubbleBert1
  6. SpeechBubbleRight(PBubbleBert2, 6.7, 1.5) → BubbleBert2
  7. SpeechBubbleRight(PBubbleBert2, 7.2, 1.5) → BubbleBert3
  8. SpeechBubbleRight(PBubbleBert2, 9, 1) → BubbleBert4
  9. SelectedIndex(dropdown) → index
  10. Textfield(input3) → InputBox3
  11. Textfield(input4) → InputBox4
  12. Textfield(input5) → InputBox5
  13. Textfield(input6) → InputBox6
  14. SpeechBubbleRight(PBubbleBert2, 7, 1) → BubbleBert5
  15. SelectedIndex(dropdown1) → index2
  16. Polygon((0.02, -2.3), (1.12, -2.3), (1.12, -4.6), (0.02, -4.6)) → q1, f, g, h, i
  17. Polygon((6.64, -2.32), (7.74, -2.32), (7.74, -4.62), (6.64, -4.62)) → q1_{1}, f_{1}, g_{1}, h_{1}, i_{1}
  18. SpeechBubbleLeft(PBubbleBert3, 12.45, 2.5) → BubbleBert6
  19. SpeechBubbleRight(PBubbleHilde1, 6.7, 1.2) → BubbleHilde3