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十进制幂次方

十进制幂次方
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2025-07-02 18:37
所属专题 Zehnerpotenzen & Gleitkommadarstellung
本范例通过选择题和开放题的形式，帮助学生理解十进制幂次方的概念。核心数学概念包括十进制幂次方的表示方法及其应用。使用了Sequence, Element, Textfield等GeoGebra命令进行构造。适合7-8年级学生学习十进制幂次方的表示和应用。

GeoGebra 命令及参数

  1. Sequence(Random[1, 10], i, 1, 10) → randomNumbers, {1, 6, 7, 10, 3, 5, 5, 3, 6, 10}
  2. Element(randomNumbers, Mod[questionCount, Length[randomNumbers]] + 1) → randomNumber
  3. Textfield(input) → inputBox
  4. Join({Sequence[Segment[Corner[4] + (RasterPixMat * ((k * RasterStepXY), 0)), Corner[4] + (RasterPixMat * ((k * RasterStepXY), RasterMaxY))], k, 0, RasterMaxX / RasterStepXY], Sequence[Segment[Corner[4] + (RasterPixMat * (0, (k * RasterStepXY))), Corner[4] + (RasterPixMat * (RasterMaxX, (k * RasterStepXY)))], k, 0, RasterMaxY / RasterStepXY]}) → RasterStrecken
  5. Join({Sequence[Text[UnicodeToLetter[65 + k], Midpoint[Corner[4] + (RasterPixMat * ((k * RasterStepXY), RasterMaxY)), Corner[4] + (RasterPixMat * (((k + 1) * RasterStepXY), RasterMaxY))], false, true, 0, -1], k, 0, RasterMaxX / RasterStepXY - 1], Sequence[Text[("" * k), Midpoint[Corner[4] + (RasterPixMat * (RasterMaxX, ((k - 1) * RasterStepXY))), Corner[4] + (RasterPixMat * (RasterMaxX, (k * RasterStepXY)))], false, true, 1, 0], k, 1, RasterMaxY / RasterStepXY]}) → RasterBeschriftung
  6. Sequence(Sequence[Corner[4] + (RasterPixMat * ((k * RasterStepXY), (m * RasterStepXY))), k, 0, RasterMaxX / RasterStepXY], m, 0, RasterMaxY / RasterStepXY) → RasterPunkte
  7. PolyLine(PosSB, Corner[txt011, 1] + (-0.1 + 7.5, -0.1), Corner[txt011, 1] + (-0.1, -0.1), Corner[txt011, 4] + (-0.1, 0.1), Corner[txt011, 3] + (0.1, 0.1), Corner[txt011, 2] + (0.1, -0.1), Corner[txt011, 1] + (-0.1 + 9, -0.1), PosSB) → sb01
  8. Textfield(input021) → InputBox021
  9. Textfield(input022) → InputBox022
  10. Textfield(input023) → InputBox023
  11. Textfield(input024) → InputBox024
  12. Textfield(input025) → InputBox025
  13. Textfield(input026) → InputBox026
  14. Textfield(input027) → InputBox027
  15. Textfield(input028) → InputBox028
  16. SelectedIndex(dropdown041) → index041
  17. SelectedIndex(dropdown042) → index042
  18. If(step ≟ 2, correct021 ∧ correct022 ∧ correct023 ∧ correct024 ∧ correct025 ∧ correct026 ∧ correct027 ∧ correct028, true) → clickableBtnNext