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4 Numbers - Fifth Grade Version

4 Numbers - Fifth Grade Version
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2017-08-03 21:13
TriangleFunctionCoordinate Geometry
This example demonstrates how to perform various operations with four numbers, involving fractions, isosceles triangles, interest calculation, and function graphs. Using GeoGebra commands such as RandomElement, If, Polygon, and Segment, an interactive math game is constructed. Suitable for fifth-grade students to practice and explore mathematics.

GeoGebra Commands & Parameters

  1. RandomElement(possibleDecimals) → A
  2. RandomElement(Remove[possibleDecimals, {A}]) → B
  3. RandomElement({2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}) → Cdenom
  4. If(Cdenom ≟ 2, Random[0, 40, true], If[Cdenom ≟ 3, Random[0, 60, true], If[Cdenom ≟ 4, Random[0, 80, true], If[Cdenom ≟ 5, Random[0, 100, true], If[Cdenom ≟ 6, Random[0, 120, true], If[Cdenom ≟ 7, Random[0, 140, true], If[Cdenom ≟ 8, Random[0, 160, true], If[Cdenom ≟ 9, Random[0, 180, true], If[Cdenom ≟ 10, Random[0, 200, true], If[Cdenom ≟ 11, Random[0, 220, true], If[Cdenom ≟ 12, Random[0, 240, true]]]]]]]]]]]) → Cnum
  5. Polygon(I + (10, 0), W + (10, 0), V + (10, 0), J + (10, 0)) → poly1, g, h, i, j
  6. Polygon(J + (10, 0), V + (10, 0), U + (10, 0), K + (10, 0)) → poly2, k, n, p, q
  7. Polygon(K + (10, 0), U + (10, 0), T + (10, 0), L + (10, 0)) → poly3, l, r, t, a
  8. Polygon(L + (10, 0), T + (10, 0), S + (10, 0), M + (10, 0)) → poly4, m, s, b, f_1
  9. Segment(H, G) → c
  10. Segment(G, Z) → d
  11. Segment(Z, E) → e
  12. Segment(E, F) → f
  13. FractionText(C) → Cfancy
  14. Random(1, 19) → Dwhole
  15. RandomElement({2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}) → Ddenom
  16. Random(1, Ddenom - 1, true) → Dnum
  17. FractionText(Dnum / Ddenom) → Dfancy
  18. If(Dwhole < 0, Dwhole - Dnum / Ddenom, Dwhole + Dnum / Ddenom) → D
  19. Segment(A_1, Aact) → aerr
  20. Segment(B_1, Bact) → berr
  21. Segment(C_1, Cact) → cerr
  22. Segment(D_1, Dact) → derr
  23. Sort({A, B, C, D}) → test
  24. Sort({x(A_1), x(B_1), x(C_1), x(D_1)}) → test2
  25. If(IndexOf[A, Sort[{A, B, C, D}]] ≟ IndexOf[x(A_1), Sort[{x(A_1), x(B_1), x(C_1), x(D_1)}]], 1) → orderA
  26. If(IndexOf[B, Sort[{A, B, C, D}]] ≟ IndexOf[x(B_1), Sort[{x(A_1), x(B_1), x(C_1), x(D_1)}]], 1) → orderB
  27. If(IndexOf[C, Sort[{A, B, C, D}]] ≟ IndexOf[x(C_1), Sort[{x(A_1), x(B_1), x(C_1), x(D_1)}]], 1) → orderC
  28. If(IndexOf[D, Sort[{A, B, C, D}]] ≟ IndexOf[x(D_1), Sort[{x(A_1), x(B_1), x(C_1), x(D_1)}]], 1) → orderD