Three Bars Demo
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P3 3N5 分數圖示 / Fraction representations
This example demonstrates the transformation and combination relationships of three bar graphs. It involves core mathematical concepts such as correlation, translation, binomial distribution, and diagram drawing. GeoGebra commands like Sequence and If are used, along with objects like Cx, Cy, Len, Wid, Sp, D1, len1, D2, len2, D3, len3. It is suitable for high school mathematics teaching, helping students understand transformations, statistical graphs, and geometric constructions.
GeoGebra Commands & Parameters
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) → RecD1Sequence(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) → RecD2Sequence(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) → RecD3If(ShowChi, "三個數棒的圖示", "Drawings of three bars") → TextTitleIf(ShowChi, "可用滑桿移動數棒", "Move the bars by the sliders") → TextNote2If(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.") → TextNote1If(ShowChi, "滑桿1", "Slider 1") → TextMove1If(ShowChi, "滑桿2", "Slider 2") → TextMove2If(ShowChi, "滑桿3", "Slider 3") → TextMove3