积极 AI Logo 积极 AI

异分母分数加减法

异分母分数加减法
几何画板及绘图内容加载中，请稍等……
2017-01-20 06:42
函数微积分几何作图
这个范例演示了异分母分数的加减法过程。核心数学概念包括分数的基本运算和通分。通过使用GeoGebra命令如Polygon, Point, Segment, Intersect等，可以直观地展示分数加减法的几何意义。适合小学高年级和初中学生学习。

GeoGebra 命令及参数

  1. Polygon(A, B, C, D) → poly1, a, b, c, d
  2. Polygon(A_1, B_1, C_1, D_1) → poly1_1, a_1, b_1, c_1, d_1
  3. Point(a) → E
  4. Point(c) → F
  5. Segment(E, F) → f
  6. Point(a) → G
  7. Segment(G, H) → g
  8. Point(a) → I
  9. Point(c) → J
  10. Segment(I, J) → h
  11. Point(a) → K
  12. Segment(K, L) → i
  13. Point(a) → M
  14. Segment(M, N) → j
  15. Intersect(d, xAxis) → O
  16. Intersect(b, xAxis) → P
  17. Segment(O, P) → k
  18. Point(a_1) → Q
  19. Point(c_1) → R
  20. Point(a_1) → S
  21. Segment(S, T) → m
  22. Point(a_1) → U
  23. Point(a_1) → W
  24. Point(c_1) → Z
  25. Segment(W, Z) → p
  26. Point(a_1) → E_1
  27. Intersect(d_1, xAxis) → G_1
  28. Intersect(b_1, xAxis) → H_1
  29. Segment(G_1, H_1) → r
  30. Intersect(a, d) → I_1
  31. Intersect(a, f) → J_1
  32. Point(f) → K_1
  33. Intersect(d, k) → L_1
  34. Polygon(M_1, N_1, O_1, P_1) → poly3, m_1, n_1, o_1, p_1
  35. Polygon(Q_1, R_1, S_1, T_1) → poly4, q_1, r_1, s_1, t_1
  36. Polygon(U_1, V_1, W_1, Z_1) → poly5, u_1, v_1, w_1, z_1
  37. Polygon(A_2, B_2, C_2, D_2) → poly6, a_2, b_2, c_2, d_2
  38. Point(d_2) → E_2
  39. Segment(E_2, F_2) → l
  40. Polygon(A_3, B_3, C_3, D_3) → poly1_2, a_3, b_3, c_3, d_3
  41. Point(a_3) → E_3
  42. Point(c_3) → F_3
  43. Point(a_3) → G_2
  44. Point(a_3) → I_3
  45. Point(c_3) → J_2
  46. Point(a_3) → K_2
  47. Point(a_3) → M_2
  48. Intersect(a_3, d_3) → I_2
  49. Point(c_3) → L_2
  50. Segment(H_2, L_2) → n
  51. Point(a_3) → N_2
  52. Segment(N_2, O_2) → q
  53. Point(a_3) → P_2
  54. Segment(P_2, Q_2) → s
  55. Point(a_3) → R_2
  56. Point(c_3) → S_2
  57. Segment(R_2, S_2) → t
  58. Point(a_3) → T_2
  59. Point(c_3) → U_2
  60. Segment(T_2, U_2) → e
  61. Point(d_3) → V_2
  62. Segment(V_2, W_2) → f_1
  63. Intersect(a_3, d_3) → Z_2
  64. Intersect(a_3, n) → G_3
  65. Point(n) → H_3
  66. Intersect(d_3, f_1) → J_3
  67. Polygon(Z_2, G_3, H_3, J_3) → poly7, z_2, g_3, h_3, j_3
  68. Intersect(q, f_1) → K_3
  69. Intersect(c_3, q) → L_3
  70. Point(d_3) → M_3
  71. Polygon(J_3, K_3, L_3, M_3) → poly8, j_2, k_3, l_3, m_3