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凑8伙伴

凑8伙伴
几何画板及绘图内容加载中，请稍等……
2020-04-14 05:01
概率统计几何作图
①本范例演示如何通过图形化方式找到数字8的配对伙伴；②涉及的核心数学概念为加法与数感，通过可视化帮助低年级学生理解数字组合；③作图要点：使用了Random命令生成随机数，Textfield和Sequence创建序列显示，InputBox1和button1实现交互输入，sum计算和，AdjustHoriz/Vert调整布局；④适合幼儿园和一年级学生，用于基础加法启蒙与数字组合练习。

GeoGebra 命令及参数

  1. Random(0, sum - 1) → seed1
  2. Textfield(inputseed2) → InputBox1
  3. Sequence(Segment[B + (0, (i * edge)), B + (0, (i * edge)) + ((NumberPerRow * edge), 0)], i, 0, NumberPerColumn) → l1
  4. Sequence(Segment[B + ((i * edge), 0), B + ((i * edge), 0) + (0, (NumberPerColumn * edge))], i, 0, NumberPerRow) → l2
  5. Sequence(Segment[B_1 + (0, (i * edge_1)), B_1 + (0, (i * edge_1)) + ((NumberPerRow_1 * edge_1), 0)], i, 0, NumberPerColumn_1) → l1_1
  6. Sequence(Segment[B_1 + ((i * edge_1), 0), B_1 + ((i * edge_1), 0) + (0, (NumberPerColumn_1 * edge_1))], i, 0, NumberPerRow_1) → l2_1
  7. Sequence(Segment[B_2 + (0, (i * edge_2)), B_2 + (0, (i * edge_2)) + ((NumberPerRow_2 * edge_2), 0)], i, 0, NumberPerColumn_2) → l1_2
  8. Sequence(Segment[B_2 + ((i * edge_2), 0), B_2 + ((i * edge_2), 0) + (0, (NumberPerColumn_2 * edge_2))], i, 0, NumberPerRow_2) → l2_2