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通过分数简化操作的GeoGebra范例

通过分数简化操作的GeoGebra范例
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2022-08-24 21:00
所属专题 Bruchzahlen: Erweitern und Kürzen Wiederholung II: Erweitern & Kürzen, Darstellungsarten
This example demonstrates how to understand fraction simplification through geometric visualization. Key mathematical concepts include fraction operations and geometric construction. Construction involves using GeoGebra commands like Join, Textfield, and Polygon. Suitable for elementary students in grades 5-6 for practice in expanding and simplifying fractions.

GeoGebra 命令及参数

  1. Join({{1}, Shuffle[{2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21}]}) → randomNosForX
  2. Textfield(aInput) → InputBox1
  3. Polygon(PtopLeftCornerFeedback, PtopRightCornerFeedback, PbottomRightCornerFeedback, PbottomLeftCornerFeedback) → rectangleCorrect, ptopleftcornerfeedback, ptoprightcornerfeedback, pbottomrightcornerfeedback, pbottomleftcornerfeedback
  4. SpeechBubbleLeft(C, 5, 1.5) → bubble1
  5. Defined(aInput) → fixed
  6. CircleArc(D, E, F) → c
  7. Point(c) → G
  8. Vector(G, H) → u
  9. CircleArc(I, J, K) → d
  10. Point(d) → L
  11. Vector(L, M) → v
  12. CircleArc(P, Q, R) → e
  13. CircleArc(S, T, U) → f
  14. Point(f) → V
  15. Vector(V, W) → w
  16. Point(e) → Z
  17. Vector(Z, A_1) → a