百格加法演示
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①本范例演示使用百格板进行加法运算的图形现象;②涉及的核心数学概念包括加法运算、数位组合、视觉化数学;③作图要点——从下方『构造摘要』提炼用到了Segment(线段)、Point(点)、Sum(求和)、Polygon(多边形)等GeoGebra命令/对象;④适合小学低年级数学教学,用于直观理解加法运算过程。
GeoGebra 命令及参数
Segment((0, 11), (23, 11)) → fPoint(f) → APoint(f) → BPoint(f) → CPoint(f) → DPoint(f) → EPoint(f) → FPoint(f) → IPoint(f) → JPoint(f) → GPoint(f) → HPoint(f) → KPoint(f) → LPoint(f) → MPoint(f) → NPoint(f) → OPoint(f) → PPoint(f) → QPoint(f) → RPoint(f) → SPoint(f) → TSum(row1list) → row1valueSegment((0, 8), (23, 8)) → gPoint(g) → UPoint(g) → VPoint(g) → WPoint(g) → ZPoint(g) → A_1Point(g) → B_1Point(g) → C_1Point(g) → D_1Point(g) → E_1Point(g) → F_1Point(g) → G_1Point(g) → H_1Point(g) → I_1Point(g) → J_1Point(g) → K_1Point(g) → L_1Point(g) → M_1Point(g) → N_1Point(g) → O_1Point(g) → P_1Sum(row2list) → row2valuePolygon(Q_1, R_1, S_1, T_1) → poly1, q_1, r_1, s_1, t_1