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Circular Model of Fractions

Circular Model of Fractions
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2016-11-08 06:17
CircleSequenceGeometric Construction
This example uses a circular model to help students visualize fractions. It involves the core mathematical concept of fractions. Using GeoGebra commands such as Line, Sector, Sequence, etc., a dynamic fraction model is constructed. Suitable for high-grade elementary and junior high school students to learn about fractions.

GeoGebra Commands & Parameters

  1. Line(Pt_1, Pt_2) → Part_1
  2. Line(Pt_3, Pt_4) → Part_2
  3. Sector(c, 0, ((360 * ° / Denominator) * Numerator)) → e
  4. Sequence(Segment[(0, 0), ((3 * cos(θ)), (3 * sin(θ)))], θ, 0*°, 360*°, (360 * ° / Denominator)) → list1
  5. Vector(A, B) → u
  6. Translate(list1, u) → list1'
  7. Sector(c, 0*°, 360*°) → d
  8. Text(Numerator, E) → text5
  9. Segment(F, G) → a
  10. Text(Denominator, D) → text4
  11. Join({{1}, denom}) → num
  12. RandomElement(num) → var_1
  13. RandomElement(denom) → var_2
  14. Textfield(Numerator_2) → inputBox1
  15. Textfield(Denominator_2) → inputBox2