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Multiplication Box Method

Multiplication Box Method
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2015-10-20 08:31
PolygonCoordinate GeometryGeometric Construction
This example demonstrates the multiplication box method, a visual approach to multiplication. Key mathematical concepts include multiplication of natural numbers. Using GeoGebra commands such as Point, Segment, Rotate, etc., a multiplication box is constructed. Suitable for upper elementary or lower middle school students to learn multiplication.

GeoGebra Commands & Parameters

  1. Point(Circle[A, Width1]) → B
  2. Segment(A, B) → b
  3. Point(Circle[A, Width1 + Width2]) → C
  4. Segment(A, C) → a
  5. Point(Circle[A, Height1]) → L
  6. Segment(A, L) → c
  7. Point(Circle[A, Height1 + Height2]) → M
  8. Segment(A, M) → M_1
  9. Rotate(L, 270*°, A) → D
  10. Rotate(M, 270*°, A) → E
  11. OrthogonalLine(C, a) → d
  12. OrthogonalLine(B, b) → e
  13. Segment(A, D) → f
  14. Segment(D, E) → g
  15. Segment(B, C) → h
  16. OrthogonalLine(D, f) → i
  17. OrthogonalLine(E, f) → j
  18. Intersect(e, i) → F
  19. Intersect(d, i) → G
  20. Intersect(d, j) → H
  21. Intersect(e, j) → I
  22. Polygon(A, B, F, D) → poly1, a_1, b_1, f_1, d_1
  23. Polygon(D, F, I, E) → poly2, d_2, f_2, i_1, e_1
  24. Polygon(B, C, G, F) → poly3, b_2, c_1, g_1, f_3
  25. Polygon(F, G, H, I) → poly4, f_4, g_2, h_1, i_2