Number Line Addition Demo by Matt Whiteway

GeoGebra Commands & Parameters

1. Intersect(xAxis, yAxis) → A
2. Point(Circle[A, abs(a)]) → B
3. Segment(A, B) → c
4. Point(Circle[B, abs(b)]) → C
5. Segment(B, C) → d
6. Point(yAxis) → D
7. Point(Circle[D, abs(a + b)]) → E
8. Segment(D, E) → e
9. Point(Circle[D, 20]) → F
10. Segment(D, F) → f
11. Segment(C, E) → g
12. Circle(E, Segment[E, C]) → h
13. Circle(C, Segment[C, E]) → k
14. Intersect(h, k, 2) → G
15. Intersect(h, k, 1) → H
16. Polygon(G, H, E) → poly1, e_1, g_1, h_1
17. Point(Circle[I, 1]) → J
18. Segment(I, J) → i
19. Point(Circle[I, 1]) → K
20. Segment(I, K) → j
21. Point(Circle[K, 1]) → L
22. Segment(K, L) → l
23. Segment(L, J) → m
24. Polygon(K, I, J, L) → poly2, k_1, i_1, j_1, l_1
25. Circle(M, 0.4) → p
26. Translate(p, (1, 0)) → p'
27. Translate(p, (2, 0)) → p'_1
28. Translate(p, (3, 0)) → p'_2
29. Translate(p, (4, 0)) → p'_3
30. Translate(p, (5, 0)) → p'_4
31. Translate(p, (6, 0)) → p'_5
32. Translate(p, (7, 0)) → p'_6
33. Translate(p, (8, 0)) → p'_7
34. Translate(p, (0, 1)) → p'_8
35. Translate(p, (1, 1)) → p'_9
36. Translate(p, (2, 1)) → p'_{10}
37. Translate(p, (3, 1)) → p'_{11}
38. Translate(p, (4, 1)) → p'_{12}
39. Translate(p, (5, 1)) → p'_{13}
40. Translate(p, (6, 1)) → p'_{14}
41. Translate(p, (7, 1)) → p'_{15}
42. Translate(p, (8, 1)) → p'_{16}
43. Translate(p, (0, -1)) → p'_{17}
44. Translate(p, (1, -1)) → p'_{18}
45. Translate(p, (2, -1)) → p'_{19}
46. Translate(p, (3, -1)) → p'_{20}
47. Translate(p, (4, -1)) → p'_{21}
48. Translate(p, (5, -1)) → p'_{22}
49. Translate(p, (6, -1)) → p'_{23}
50. Translate(p, (7, -1)) → p'_{24}
51. Translate(p, (8, -1)) → p'_{25}
52. Translate(p, (9, -1)) → p'_{26}
53. Translate(p, (0, -2)) → p'_{27}
54. Translate(p, (1, -2)) → p'_{28}
55. Translate(p, (2, -2)) → p'_{29}
56. Translate(p, (3, -2)) → p'_{30}
57. Translate(p, (4, -2)) → p'_{31}
58. Translate(p, (5, -2)) → p'_{32}
59. Translate(p, (6, -2)) → p'_{33}
60. Translate(p, (7, -2)) → p'_{34}