三个棒演示

几何画板及绘图内容加载中，请稍等……

2018-05-16 12:31

概率统计

所属专题 P3 3N5 分数图示 / Fraction representations

①本范例演示三个棒状图形的变换与组合关系；②涉及核心数学概念包括相关性、平移变换、二项分布及图形绘制；③构造中运用了Sequence（数列）、If（条件判断）等GeoGebra命令，创建了多个对象如Cx, Cy, Len, Wid, Sp, D1, len1, D2, len2, D3, len3等；④适合高中数学教学，用于理解变换、统计图形及几何作图。

GeoGebra 命令及参数

Sequence(Polygon[(Cx + (len1 * (k - 1)), Cy + Move1), (Cx + (len1 * (k - 1)), Cy + Wid + Move1), (Cx + (len1 * k), Cy + Wid + Move1), (Cx + (len1 * k), Cy + Move1)], k, 1, D1) → RecD1
Sequence(Polygon[(Cx + (len2 * (k - 1)), Cy + Sp + Move2), (Cx + (len2 * (k - 1)), Cy + Wid + Sp + Move2), (Cx + (len2 * k), Cy + Wid + Sp + Move2), (Cx + (len2 * k), Cy + Sp + Move2)], k, 1, D2) → RecD2
Sequence(Polygon[(Cx + (len3 * (k - 1)), Cy + (2 * Sp) + Move3), (Cx + (len3 * (k - 1)), Cy + Wid + (2 * Sp) + Move3), (Cx + (len3 * k), Cy + Wid + (2 * Sp) + Move3), (Cx + (len3 * k), Cy + (2 * Sp) + Move3)], k, 1, D3) → RecD3
If(ShowChi, "三個數棒的圖示", "Drawings of three bars") → TextTitle
If(ShowChi, "可用滑桿移動數棒", "Move the bars by the sliders") → TextNote2
If(ShowChi, "移動水平的滑桿，可以改變數棒分割的情況。", "Move the horizontal slider to change the parts of a number bar.") → TextNote1
If(ShowChi, "滑桿1", "Slider 1") → TextMove1
If(ShowChi, "滑桿2", "Slider 2") → TextMove2
If(ShowChi, "滑桿3", "Slider 3") → TextMove3