动画125:平行四边形与立方体的综合几何变换
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所属专题
Congruence (CO) Cluster
Congruence (Vol 2)
CCSS High School: Geometry (Congruence) Volume 2
CCSS High School: Geometry (Congruence) Volume 2
CCSS High School: Geometry (Congruence) Volume 2
Geometry (Congruence) Volume 2
CCSS High School: Geometry (Congruence) Volume 2
CCSS High School: Geometry (Congruence) Volume 2
CCSS High School: Geometry (Congruence) Volume 2
CCSS High School: Geometry (Congruence) Volume 2
CCSS High School: Geometry (Congruence) Volume 2
CCSS High School: Geometry (Congruence) Volume 2
CCSS High School: Geometry (Congruence) Volume 2
Gail LeBlancCCSS High School: Geometry (Congruence) Volume 2
CCSS High School: Geometry (Congruence) Volume 2
该范例展示了一个包含平行四边形、立方体、定积分、自然数、树状图和中位数等多主题的综合性动画。核心数学概念涵盖几何变换(旋转、平移、缩放)、多边形构造、向量运算以及微积分中的定积分表示。作图要点包括使用GeoGebra的Rotate、Angle、Ray、Line、Point、Intersect、Segment、Min、Circle、Dilate、CircleSector、Vector、Translate、Polygon、Midpoint等命令,构建了多个对象如点A、B、C、D、E、F、G、H、I、J、K,线段a、b、c、d、e、f、g、h、i、j、k、l、m、n、o、p、q、r、s、t、u,以及圆、扇形、多边形等。适合中学及以上学段用于探索几何变换与多概念综合应用,也可作为教师制作动态演示的参考。
GeoGebra 命令及参数
Rotate(B, a°, A) → B'Angle(B, A, B') → αRay(A, B) → fRay(A, B') → gLine(B, g) → hPoint(g) → CLine(C, f) → iIntersect(h, i) → DSegment(C, D) → jSegment(A, B) → kSegment(B, D) → lSegment(A, C) → mMin(m, k) → bCircle(C, (0.2 * b)) → dCircle(A, (0.2 * b)) → eCircle(B, (0.2 * b)) → pCircle(D, (0.2 * b)) → cIntersect(e, k, 1) → EIntersect(e, m, 1) → FIntersect(p, k, 1) → GIntersect(p, l, 1) → HIntersect(d, g, 2) → IRay(C, I) → qIntersect(c, h, 2) → JRay(D, J) → rIntersect(c, i, 2) → KRay(D, K) → sDilate(A, If[0 < o ≤ 1, 1 - o, 0], B) → A'Segment(A, A') → tRotate(E, If[1 < o ≤ 2, ((o - 1) * α), α], A) → E'CircleSector(A, E, E') → c_1Dilate(A, If[2 < o ≤ 3, 3 - o, 0], C) → A'_1Vector(A, A'_1) → uTranslate(c_1, u) → d_1Segment(A, A'_1) → f_1Dilate(C, If[3 < o ≤ 4, 4 - o, 0], D) → C'Vector(C, C') → vTranslate(d_1, v) → e_1Segment(C, C') → g_1Dilate(D, If[4 < o ≤ 5, 5 - o, 0], B) → D'Segment(D, D') → h_1Polygon(A, B, D, C) → poly1, a_1, b_1, d_2, c_2Dilate(A, If[5.5 < o ≤ 6.5, 6.5 - o, 0], C) → A'_2Vector(A, A'_2) → wTranslate(A, w) → A'_3Translate(A', w) → A''Dilate(A, If[6.5 < o ≤ 7.5, 7.5 - o, 0], B) → A'_4Vector(A, A'_4) → u_1Translate(A, u_1) → A'_5Translate(A'_1, u_1) → LIntersect(d, i) → M, NIntersect(d, g) → O, PAngle(A, C, N) → βRotate(N, If[6.5 < o ≤ 7.5, ((-(o - 6.5)) * β), (-β)], C) → N'Dilate(C, If[7.5 < o ≤ 8.5, 8.5 - o, 0], B) → C'_1Vector(C, C'_1) → v_1Midpoint(A, D) → QDilate(A, If[5.5 < o ≤ 6.5, 6.5 - o, 0], Q) → A'_6Segment(A, A'_6) → i_1Dilate(Q, If[6.5 < o ≤ 7.5, 7.5 - o, 0], D) → Q'Segment(Q, Q') → j_1Dilate(B, If[7.5 < o ≤ 8.5, 8.5 - o, 0], Q) → B'_1Segment(B, B'_1) → k_1Dilate(Q, If[8.5 < o ≤ 9.5, 9.5 - o, 0], C) → Q'_1Segment(Q, Q'_1) → l_1Rotate(A, If[9.5 < o ≤ 10.5, ((-(o - 9.5)) * π), (-π)], Q) → A'_7Rotate(A'_6, If[9.5 < o ≤ 10.5, ((-(o - 9.5)) * π), (-π)], Q) → RSegment(A'_7, R) → m_1Rotate(B, If[10.5 < o ≤ 11.5, ((-(o - 10.5)) * π), (-π)], Q) → B'_2Rotate(B'_1, If[10.5 < o ≤ 11.5, ((-(o - 10.5)) * π), (-π)], Q) → SSegment(B'_2, S) → n_1
AI 绘图提示语参考
画一个动态演示几何变换的图形,包含平行四边形和正方形。展示旋转、平移和缩放变换,结合向量运算和积分表示。初始构建一个平行四边形,然后通过旋转和向量操作生成新的图形,并用圆和扇形强调关键点。随着动画进行,图形会进行一系列变换,展示几何变换的动态效果。
以上提示语为根据原始绘图命令整理而来,仅供参考。