2的倍数圆形分类
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①本范例演示如何通过圆形对2的倍数进行分类;②涉及的核心数学概念包括算术、圆、线性方程、概率统计;③作图要点:使用了Shuffle、Element、Circle、Polygon、Sequence等GeoGebra命令,创建了多个对象如J1, I1, Circle, Polygon等;④适合初中及以上学生学习,用于理解算术运算与几何图形的结合应用。
GeoGebra 命令及参数
Shuffle(listp) → listq, {(11, 14), (12, 11), (14, 14), (15, 11), (3, 11), (5, 14), (8, 14), (2, 14), (9, 11), (6, 11)}Element(listq, 1) → P1Element(listq, 2) → P2Element(listq, 3) → P3Element(listq, 4) → P4Element(listq, 5) → P5Element(listq, 6) → P6Element(listq, 7) → P7Element(listq, 8) → P8Element(listq, 9) → P9Element(listq, 10) → P10Circle(P1, rR) → aaCircle(P2, rR) → bbCircle(P3, rR) → ccCircle(P4, rR) → ddCircle(P5, rR) → eeCircle(P6, rR) → ffCircle(P7, rR) → ggCircle(P8, rR) → hhCircle(P9, rR) → iiCircle(P10, rR) → jjShuffle(listquestion) → listqn, {9, 1, 10, 5, 2, 6, 3, 7, 4, 8}Element(listqn, elm) → qQPolygon((2, 9), (2, 11), (a / 2 + 2, 11), (a / 2 + 2, 9)) → q1, f, g, h, iSequence(Segment[(2, 9 + n), (12, 9 + n)], n, 0, 2) → l1Sequence(Segment[(m, 9), (m, 11)], m, 2, 12) → l2