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两位数乘一位数的乘法

两位数乘一位数的乘法
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2017-08-14 23:55
函数解析几何几何作图
这个范例演示了如何使用GeoGebra进行两位数乘一位数的乘法运算。核心数学概念包括乘法运算和数的位值。通过使用命令如Textfield, Vector, Polygon等，用户可以直观地理解乘法的几何意义。适合小学高年级或初中低年级学生学习乘法运算。

GeoGebra 命令及参数

  1. Textfield(n) → InputBox1
  2. Vector(B) → v_1
  3. Vector((6, 0), C) → v_2
  4. Polygon((0, 0), (0, 2), (6, 2), (6, 0)) → poly1, s_1, s_2, s_3, s_4
  5. Vector(A) → v_3
  6. Distance(D, B) → distanceDB
  7. Distance(D, A) → distanceDA
  8. Polygon((0, 0), (0, 2), (u, 2), (u, 0)) → poly2, f, g, h, i
  9. Polygon((4, 0), (4, 2), (u_1 - 1, 2), (u_1 - 1, 0)) → poly3, j, k, l, m
  10. Distance(A, E) → distanceAE
  11. Distance(A, F) → distanceAF
  12. Polygon(G, H, I, J) → poly4, g_1, h_1, i_1, j_1
  13. Polygon(K, L, M, N) → poly5, k_1, l_1, m_1, n_2
  14. Polygon(G, H, I, J) → poly6, g_2, h_2, i_2, j_2
  15. Polygon(K, L, M, N) → poly7, k_2, l_2, m_2, n_3
  16. Polygon((0, 0), (0, 2), (w, 2), (w, 0)) → poly8, p, q, r, s
  17. Segment((6, 2), (w, 2)) → e
  18. Segment((6, 0), (w, 0)) → f_1
  19. Distance(A, O) → distanceAO
  20. Distance(P, Q) → distancePQ
  21. Point(yAxis) → S
  22. Segment(R, S) → r_1
  23. Segment(U, T) → a_1
  24. Polygon((8, 0), (8, 2), (17 - w_1, 2), (17 - w_1, 0)) → poly9, b_1, c_1, d_1, e_1