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Compare Fractions by Dolores Behme

Compare Fractions by Dolores Behme
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2018-03-15 23:27
Sequence
This example demonstrates how to compare two fractions using GeoGebra. Key mathematical concepts include the properties of fractions and comparison methods. By using commands like LCM, Sequence, and Element, users can dynamically adjust the numerators and denominators of the fractions, observing their effects on the fraction's size. Suitable for upper elementary and middle school students learning fraction comparison and basic operations.

GeoGebra Commands & Parameters

  1. LCM(den1, den2) → b
  2. Sequence((-5 + (i * 10 / den1), 0), i, 0, den1) → list1
  3. Element(list1, 1) → c
  4. Sequence((-5 + (i * 10 / den1), 0.8), i, 0, den1) → list2
  5. Sequence(Segment[Element[list1, i], Element[list2, i]], i, 1, den1 + 1) → list3
  6. Sequence((-5 + (i * 10 / den2), 0), i, 0, den2) → list4
  7. Sequence((-5 + (i * 10 / den2), -0.8), i, 0, den2) → list5
  8. Sequence((-5 + (i * 10 / b), 0), i, 0, b) → list7
  9. Sequence(Segment[Element[list4, i], Element[list5, i]], i, 0, den2 + 1) → list6
  10. Segment(D, C) → a
  11. Polygon(E, F, J_1, K_1) → poly1, e, f, j_1, k_1
  12. Polygon(H, G, K_2, J_2) → Poly2, h, g, k_2, j_2
  13. Segment(J_1, K_11) → d
  14. Segment(J_1, K_2) → i
  15. Segment(K_2, K) → j
  16. Segment(K_11, K) → k