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Rewrite Fractions as Decimals

Rewrite Fractions as Decimals
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2017-07-14 03:31
FunctionSequenceCoordinate Geometry
This example demonstrates how to convert fractions to decimals interactively. Key math concepts include the conversion between fractions and decimals. It uses commands like If, Translate, Circle, Sequence, CircleSector, Midpoint, and Segment in GeoGebra. Suitable for students from 5th to 9th grade.

GeoGebra Commands & Parameters

  1. If(m < 3, 0.3, 9 / ((10 * Min[cirkler, m]) - 2)) → st
  2. If(a / b > 1, 0, 1.35) → d
  3. If(m ≤ cirkler, 0.5, 1 - st) → e
  4. Translate(G, Vector[((2.25 * st) * (Mod[m - 1, cirkler], (-floor((m - 1) / cirkler))))]) → H
  5. Circle(G, st) → g
  6. Sequence(Segment[G, G + (st; ((2 * π) * i / b))], i, 0, b - 1) → navner
  7. Sequence(Translate[navner, Vector[((2.25 * st) * (Mod[i, cirkler], (-floor(i / cirkler))))]], i, 1, m - 1) → list1
  8. Sequence(Translate[g, Vector[((2.25 * st) * (Mod[i, cirkler], (-floor(i / cirkler))))]], i, 1, m - 1) → list2
  9. CircleSector(H, H + (st; ((2 * π) * a / b)), H + (st; 0)) → k
  10. Midpoint(G, H) → A
  11. Segment(B, C) → c
  12. If(a < 10, ((("" * " ") * a) * ""), If[(a ≥ 10) ∧ (a < 100), ((("" * " ") * a) * ""), If[a ≥ 100, (("" * a) * " ")]]) → t1
  13. If(b < 10, ((("" * " ") * b) * ""), If[(b ≥ 10) ∧ (b < 100), ((("" * " ") * b) * ""), If[b ≥ 100, (("" * b) * " ")]]) → t2
  14. Sequence(Translate[g, Vector[((2.25 * st) * (Mod[i, cirkler], (-floor(i / cirkler))))]], i, 0, m - 1) → taller