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Number Line Integer Addition & Subtraction

Number Line Integer Addition & Subtraction
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2017-10-16 11:27
VectorFunctionCoordinate Geometry
This example demonstrates integer addition and subtraction on a number line. Key mathematical concepts include integer addition and subtraction. Using GeoGebra commands such as Segment, Line, Circle, and Intersect, the process of addition and subtraction is visually illustrated. Suitable for high-grade elementary and junior high school students.

GeoGebra Commands & Parameters

  1. Segment(A, B) → a
  2. Segment(B, C) → b
  3. Segment(C, D) → c
  4. Segment(D, A) → d
  5. Line(E, xAxis) → f
  6. Circle(E, e) → h
  7. Circle(E, (-e)) → g
  8. Intersect(h, f) → F, G
  9. Vector(E, G) → u
  10. Intersect(g, f) → H, I
  11. Vector(E, H) → v
  12. OrthogonalLine(G, xAxis) → i
  13. OrthogonalLine(H, xAxis) → j
  14. Point(i) → J
  15. Circle(J, k) → p
  16. Circle(J, (-k)) → q
  17. Line(J, xAxis) → l
  18. Intersect(p, l) → L, M
  19. Intersect(q, l) → N, O
  20. Vector(J, M) → w
  21. Vector(J, N) → m
  22. OrthogonalLine(M, xAxis) → f_1
  23. OrthogonalLine(N, xAxis) → g_1
  24. OrthogonalLine(E, xAxis) → j_1
  25. Intersect(j_1, xAxis) → T
  26. Ray(T, E) → k_1
  27. Circle(H, 1) → r
  28. Intersect(r, j) → K, P
  29. Line(P, xAxis) → n
  30. Circle(P, k) → s
  31. Circle(P, (-k)) → t
  32. Intersect(s, n) → Q, R
  33. Vector(P, R) → u_1
  34. Intersect(t, n) → S, U
  35. Vector(P, S) → v_1
  36. OrthogonalLine(R, xAxis) → h_1
  37. OrthogonalLine(S, xAxis) → i_1