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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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
Textfield(input2) → InputBox2Textfield(input1) → InputBox1SpeechBubbleRight(PBubbleHilde, 10, 1.7) → BubbleHilde1SpeechBubbleRight(PBubbleHilde + (0, 1), 11.3, 1.4) → BubbleHilde2SpeechBubbleLeft(PBubbleBert, 7.6, 1.7) → BubbleBert1SpeechBubbleRight(PBubbleBert2, 6.7, 1.5) → BubbleBert2SpeechBubbleRight(PBubbleBert2, 7.2, 1.5) → BubbleBert3SpeechBubbleRight(PBubbleBert2, 9, 1) → BubbleBert4SelectedIndex(dropdown) → indexTextfield(input3) → InputBox3Textfield(input4) → InputBox4Textfield(input5) → InputBox5Textfield(input6) → InputBox6SpeechBubbleRight(PBubbleBert2, 7, 1) → BubbleBert5SelectedIndex(dropdown1) → index2Polygon((0.02, -2.3), (1.12, -2.3), (1.12, -4.6), (0.02, -4.6)) → q1, f, g, h, iPolygon((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}SpeechBubbleLeft(PBubbleBert3, 12.45, 2.5) → BubbleBert6SpeechBubbleRight(PBubbleHilde1, 6.7, 1.2) → BubbleHilde3