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Simple Fraction Multiplication

Simple Fraction Multiplication
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2018-12-10 08:22
FunctionCoordinate GeometryGeometric Construction
This example demonstrates the process of multiplying simple fractions. Key mathematical concepts include fraction multiplication. Construction highlights the use of GeoGebra commands such as Point, Polygon, Textfield, etc., to create a dynamic model of fraction multiplication. Suitable for high-grade elementary or junior high school students learning fraction multiplication.

GeoGebra Commands & Parameters

  1. Point({1 - mover, 0}) → f2Point
  2. Point({-1 + mover, 0}) → f1Point
  3. Polygon(f1Point, f1Point + (f1, 0), f1Point + (f1, 1), f1Point + (0, 1)) → f1poly, f1point, n, p, q
  4. Polygon(f2Point, E, G, H) → poly3, f2point, e, g_1, h_1
  5. Textfield(f1Text) → InputBox1
  6. Textfield(f2Text) → InputBox2
  7. IndexOf(47, TextToUnicode[f1Text]) → slash1
  8. IndexOf(47, TextToUnicode[f2Text]) → slash2
  9. Take(f1Text, slash1 + 1) → D1Text
  10. Polygon(f1Point, f1Point + (1, 0), 4) → poly1, f, g, h, i, A, B
  11. Polygon(f2Point, f2Point + (1, 0), 4) → poly2, j, k, l, m, C, D
  12. Take(f2Text, slash2 + 1) → D2Text
  13. Sequence(Segment[f1Point + (i / D1, 0), f1Point + (i / D1, 1)], i, 1, D1 - 1) → f1Bars
  14. Sequence(Segment[f2Point + (0, i / D2), f2Point + (1, i / D2)], i, 1, D2 - 1) → f2Bars
  15. Polygon(f2Point, f2Point + (0, f2), f2Point + (1, f2), f2Point + (1, 0)) → f2poly, r, s, t, a
  16. RemoveUndefined(Sequence[If[pN / i ≟ floor(pN / i), i], i, 1, pN]) → Nfactors
  17. RemoveUndefined(Sequence[If[pD / i ≟ floor(pD / i), i], i, 1, pD]) → Dfactors
  18. Intersection(Nfactors, Dfactors) → factors

AI Drawing Prompt Reference

Create a simple model of fraction multiplication, including two fractions with numerators and denominators. First, draw the numerator and denominator lines for each fraction, then use these lines to create the graphical representation of each fraction. Next, draw the product of the two fractions and use lines to represent the numerator and denominator of the product. Finally, use text input boxes to input the numerators and denominators of the fractions, and dynamically adjust the fraction representation based on the input.
The prompt above was compiled from the original drawing commands and is for reference only.