分数、小数与百分数

分数、小数与百分数
几何画板及绘图内容加载中,请稍等……
2016-06-30 16:29
①本范例演示了分数、小数与百分数之间的转换关系及可视化表示;②涉及核心数学概念包括分数运算、十进制表示、百分比计算、几何图形的面积与比例;③作图要点运用了Point(点)、Segment(线段)、OrthogonalLine(垂线)、Rotate(旋转)、Intersect(交点)、Polygon(多边形)、Line(直线)、GCD(最大公约数)等GeoGebra命令与对象;④适合初中及以上数学学习者,用于理解数值转换及几何应用。

GeoGebra 命令及参数

  1. Point(Circle[A, Base]) → B
  2. Segment(A, B) → a
  3. OrthogonalLine(A, a) → c
  4. Point(Circle[A, Height]) → C
  5. Segment(A, C) → e
  6. Rotate(A, 90°, A) → A'
  7. Rotate(C, 90°, A) → C'
  8. Segment(A', C') → f
  9. OrthogonalLine(B, a) → g
  10. OrthogonalLine(C', c) → h
  11. Intersect(g, h) → D
  12. Segment(C', D) → i
  13. Segment(D, B) → j
  14. Polygon(C', A, B, D) → P, c', a_1, b_1, d_1
  15. Line(E, F) → k
  16. Intersect(d_1, k) → G
  17. Intersect(a_1, k) → H
  18. Segment(G, H) → l
  19. Line(I, J) → m
  20. Line(K, L) → n
  21. Line(M, N) → p
  22. Line(O, Q) → q
  23. Line(R, S) → r
  24. Line(T, U) → s
  25. Line(V, W) → t
  26. Line(Y, Z) → c_1
  27. Line(A_1, B_1) → e_1
  28. Line(C_1, D_1) → f_1
  29. Line(E_1, F_1) → g_1
  30. Line(G_1, H_1) → h_1
  31. Line(I_1, J_1) → i_1
  32. Line(K_1, L_1) → j_1
  33. Line(M_1, N_1) → k_1
  34. Line(O_1, P_1) → l_1
  35. Line(Q_1, R_1) → m_1
  36. Intersect(d_1, m) → S_1
  37. Intersect(a_1, m) → T_1
  38. Intersect(d_1, n) → U_1
  39. Intersect(a_1, n) → V_1
  40. Intersect(d_1, p) → W_1
  41. Intersect(a_1, p) → Y_1
  42. Intersect(d_1, q) → Z_1
  43. Intersect(a_1, q) → A_2
  44. Intersect(d_1, r) → B_2
  45. Intersect(a_1, r) → C_2
  46. Intersect(d_1, s) → D_2
  47. Intersect(a_1, s) → E_2
  48. Intersect(d_1, t) → F_2
  49. Intersect(a_1, t) → G_2
  50. Intersect(d_1, c_1) → H_2
  51. Intersect(a_1, c_1) → I_2
  52. Segment(S_1, T_1) → n_1
  53. Segment(U_1, V_1) → p_1
  54. Segment(W_1, Y_1) → q_1
  55. Segment(Z_1, A_2) → r_1
  56. Segment(B_2, C_2) → s_1
  57. Segment(D_2, E_2) → t_1
  58. Segment(F_2, G_2) → a_2
  59. Segment(H_2, I_2) → b_2
  60. Intersect(c', e_1) → J_2
  61. Intersect(b_1, e_1) → K_2
  62. Intersect(c', f_1) → L_2
  63. Intersect(b_1, f_1) → M_2
  64. Intersect(c', g_1) → N_2
  65. Intersect(c', h_1) → O_2
  66. Intersect(c', i_1) → P_2
  67. Intersect(c', j_1) → Q_2
  68. Intersect(c', k_1) → R_2
  69. Intersect(c', l_1) → S_2
  70. Intersect(c', m_1) → T_2
  71. Intersect(b_1, g_1) → U_2
  72. Intersect(b_1, h_1) → V_2
  73. Intersect(b_1, i_1) → W_2
  74. Intersect(b_1, j_1) → Y_2
  75. Intersect(b_1, k_1) → Z_2
  76. Intersect(b_1, l_1) → A_3
  77. Intersect(b_1, m_1) → B_3
  78. Segment(J_2, K_2) → c_2
  79. Segment(L_2, M_2) → d_2
  80. Segment(N_2, U_2) → e_2
  81. Segment(O_2, V_2) → f_2
  82. Segment(P_2, W_2) → g_2
  83. Segment(Q_2, Y_2) → h_2
  84. Segment(R_2, Z_2) → i_2
  85. Segment(S_2, A_3) → j_2
  86. Segment(T_2, B_3) → k_2
  87. Segment(A, C_3) → b
  88. Segment(C_3, D_3) → d
  89. Segment(D_3, E_3) → l_2
  90. Segment(E_3, A) → m_2
  91. GCD(fracnumunred, fracdenomunred) → ReduceBy

AI 绘图提示语参考

画一个几何图形,展示分数、小数和百分数的转换关系。首先绘制一个圆,标记圆心和直径,然后从圆心向直径作垂线,得到一个直角三角形。将三角形旋转90度,得到两个新的点,连接这两个点。接着,在垂线上找到与旋转后线段相交的点,连接这些点形成四边形。最后,添加一些辅助线段和直线,展示比例和面积关系,使图形更清晰地表达数值转换和几何应用。
以上提示语为根据原始绘图命令整理而来,仅供参考。