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分数化简

分数化简
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2022-08-24 21:00
所属专题 Bruchzahlen: Erweitern und Kürzen Wiederholung II: Erweitern & Kürzen, Darstellungsarten
本范例演示如何化简分数。涉及的核心数学概念是分数的化简。通过使用GeoGebra命令如Join、Element、If等，可以直观地展示分数化简的过程。适合小学五年级至六年级学生使用。

GeoGebra 命令及参数

  1. Join({{4, 5}, Shuffle[Sequence[Random[2, 12], i, 1, 100]]}) → randomNosForZ
  2. Element(randomNosForZ, Mod[questionCount, 100]) → numZ
  3. Join({{2, 3}, Shuffle[Sequence[Random[1, 4], i, 1, 100]]}) → randomNosForX
  4. Join({{3, 4}, Shuffle[Sequence[Random[5, 9], i, 1, 100]]}) → randomNosForY
  5. If(questionCount ≟ 1, aInput ≟ 2, aInput ≟ numX / numZ) → correct1
  6. If(questionCount ≟ 1, bInput ≟ 3, bInput ≟ numY / numZ) → correct2
  7. Textfield(aInput) → InputBox1
  8. Textfield(bInput) → InputBox2
  9. Polygon(PtopLeftCornerFeedback, PtopRightCornerFeedback, PbottomRightCornerFeedback, PbottomLeftCornerFeedback) → rectangleCorrect, ptopleftcornerfeedback, ptoprightcornerfeedback, pbottomrightcornerfeedback, pbottomleftcornerfeedback
  10. Defined((aInput * bInput)) → fixed
  11. Segment(A, B) → f
  12. CircleArc(C, D, E) → c
  13. CircleArc(F, G, H) → d
  14. Point(c) → I
  15. Vector(I, J) → u
  16. Point(d) → K
  17. Vector(K, L) → v
  18. Polygon(PtopLeftCornerFeedback_{1}, PtopRightCornerFeedback_{1}, PbottomRightCornerFeedback_{1}, PbottomLeftCornerFeedback_{1}) → rectangleCorrect_{1}, ptopleftcornerfeedback_{1}, ptoprightcornerfeedback_{1}, pbottomrightcornerfeedback_{1}, pbottomleftcornerfeedback_{1}
  19. CircleArc(M, N, O) → e
  20. CircleArc(P, Q, R) → g
  21. Point(e) → S
  22. Vector(S, T) → w
  23. Point(g) → U
  24. Vector(U, V) → a