比较大小:小数

比较大小:小数
几何画板及绘图内容加载中,请稍等……
2023-11-02 21:41
本范例通过互动方式帮助学生理解小数的比较与排序。它使用了滑块动画和条件判断等 GeoGebra 命令,让学生在实践中掌握小数的大小关系。适合小学五年级至六年级的学生使用。

GeoGebra 命令及参数

  1. Shuffle(Sequence[RandomElement[{2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 24}], i, 1, 100]) → randomB, {7, 7, 24, 9, 4, 5, 3, 9, 15, 3, 8, 3, 7, 5, 2, 2, 3, 24, 10, 4, 5, 24, 12, 6, 12, 5, 7, 2, 5, 10, 5, 9, 15, 15, 7, 3, 6, 5, 15, 4, 5, 2, 2, 3, 2, 2, 4, 6, 9, 9, 8, 3, 6, 10, 3, 15, 4, 15, 12, 7, 6, 2, 7, 2, 6, 10, 3, 12, 9, 7, 10, 8, 15, 10, 12, 24, 3, 10, 15, 5, 9, 8, 12, 24, 9, 15, 8, 24, 8, 8, 6, 12, 10, 10, 9, 24, 9, 7, 3, 3}
  2. Element(randomB, Mod[questionCount, 100] + 1) → numB
  3. Shuffle(Sequence[RandomElement[{2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 24}], i, 1, 100] \ {numB}) → randomD, {8, 2, 3, 15, 15, 2, 5, 6, 6, 6, 6, 12, 6, 15, 10, 8, 2, 9, 9, 9, 8, 3, 10, 8, 4, 15, 6, 24, 15, 24, 12, 10, 5, 3, 5, 8, 12, 8, 5, 8, 2, 5, 8, 10, 24, 2, 6, 8, 2, 8, 12, 10, 5, 9, 2, 15, 12, 12, 4, 15, 9, 4, 15, 3, 15, 15, 6, 3, 10, 10, 12, 9, 2, 12, 3, 8, 4, 5, 15, 24, 10, 9, 6, 9, 4, 12, 8, 5, 8, 24, 9, 4, 24, 15}
  4. Element(randomD, Mod[questionCount, 100] + 1) → numD
  5. Shuffle(Sequence[Random[1, (2 * numB)], i, 1, 100]) → randomA, {7, 1, 10, 7, 11, 1, 10, 9, 13, 5, 8, 11, 3, 12, 3, 13, 8, 9, 5, 14, 11, 9, 2, 14, 5, 4, 6, 2, 12, 6, 8, 7, 5, 9, 11, 9, 12, 7, 14, 14, 13, 14, 12, 5, 2, 7, 11, 12, 5, 14, 3, 7, 8, 9, 6, 7, 7, 11, 2, 13, 1, 3, 1, 3, 8, 4, 2, 13, 14, 8, 10, 9, 8, 6, 2, 7, 11, 5, 13, 7, 14, 13, 6, 3, 7, 2, 14, 2, 6, 5, 8, 6, 9, 7, 4, 1, 5, 11, 1, 12}
  6. Shuffle(Sequence[RandomElement[{0, 1}], i, 1, 100]) → modelist, {1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0}
  7. Element(modelist, Mod[questionCount, 100] + 1) → mode
  8. Shuffle(Sequence[Random[1, (2 * numD)], i, 1, 100] \ {numA}) → randomC, {8, 15, 8, 8, 3, 3, 4, 11, 1, 13, 2, 12, 5, 15, 1, 8, 5, 7, 2, 1, 11, 16, 10, 12, 6, 10, 1, 13, 16, 11, 1, 15, 3, 4, 3, 2, 6, 6, 13, 6, 1, 11, 5, 7, 1, 2, 10, 9, 5, 8, 6, 8, 4, 8, 4, 2, 12, 2, 10, 8, 7, 11, 7, 3, 5, 15, 6, 1, 5, 5, 5, 8, 16, 5, 9, 7, 13, 1, 10, 7, 8, 4, 10, 15, 7, 6, 5, 10, 15, 5, 8, 8, 8, 6}
  9. Textfield(input1) → InputBox1
  10. Textfield(input2) → InputBox2
  11. Polygon(PtopLeftCornerFeedback, PtopRightCornerFeedback, PbottomRightCornerFeedback, PbottomLeftCornerFeedback) → rectangleCorrect, rectangleCorrectS3, rectangleCorrectS4, rectangleCorrectS2, rectangleCorrectS1
  12. Shuffle(Sequence[Random[0, 10], i, 1, 100]) → randomNosForX, {8, 1, 8, 8, 2, 8, 5, 6, 1, 5, 6, 8, 5, 1, 1, 1, 2, 7, 8, 10, 4, 7, 4, 6, 3, 2, 0, 1, 0, 7, 0, 0, 8, 8, 10, 7, 4, 7, 9, 6, 2, 8, 8, 7, 1, 5, 9, 6, 5, 10, 5, 3, 9, 7, 4, 5, 9, 7, 2, 2, 3, 6, 7, 8, 5, 7, 4, 8, 3, 10, 8, 6, 0, 8, 9, 9, 8, 1, 4, 6, 2, 10, 0, 7, 6, 8, 10, 0, 1, 9, 7, 4, 5, 0, 5, 3, 3, 4, 5, 9}
  13. Element(randomNosForX, Mod[questionCount, 100] + 1) → numX
  14. Shuffle(Sequence[Random[0, 10], i, 1, 100]) → randomNosForY, {3, 7, 8, 9, 0, 0, 1, 7, 4, 8, 6, 8, 5, 9, 0, 1, 0, 3, 5, 3, 9, 1, 9, 5, 10, 5, 10, 1, 5, 3, 4, 2, 6, 0, 4, 0, 9, 2, 2, 9, 4, 5, 0, 9, 2, 9, 3, 10, 3, 5, 3, 9, 3, 2, 9, 0, 10, 4, 5, 4, 4, 0, 6, 5, 5, 5, 1, 6, 5, 0, 3, 10, 6, 5, 9, 4, 10, 4, 3, 8, 8, 2, 5, 0, 7, 2, 4, 8, 6, 0, 6, 0, 8, 0, 7, 0, 6, 6, 0, 8}
  15. Element(randomNosForY, Mod[questionCount, 100] + 1) → numY
  16. Append(true, Sequence[If[randomNosForX(i) ≟ randomNosForX(i - 1), false, true], i, 2, 100]) → stayX
  17. Append(true, Sequence[If[randomNosForY(i) ≟ randomNosForY(i - 1), false, true], i, 2, 100]) → stayY
  18. Remove(Sequence[If[stayX(i), randomNosForX(i), 0], i, 1, 100], Sequence[0, i, 1, 100]) → randomNosForXwithoutRepeat
  19. Remove(Sequence[If[stayY(i), randomNosForY(i), 0], i, 1, 100], Sequence[0, i, 1, 100]) → randomNosForYwithoutRepeat
  20. Element(randomNosForXwithoutRepeat, Mod[questionCount, Length[randomNosForXwithoutRepeat]] + 1) → numXwithoutRepeat
  21. Element(randomNosForYwithoutRepeat, Mod[questionCount, Length[randomNosForYwithoutRepeat]] + 1) → numYwithoutRepeat
  22. Reverse(Sequence[Mod[floor(numLeft / 10^(i)), 10], i, -15, 0]) → splitRoundNumber

AI 绘图提示语参考

画一个包含两个数字比较的图形,两个数字分别是 numB 和 numD,数字的位置在一个矩形内,矩形的左下角和右下角分别标记为 0 和 10,数字的大小和颜色根据比较结果进行变化,比较结果由 mode 决定,mode 为 0 时,numB 大于 numD,mode 为 1 时,numB 小于 numD,mode 为 2 时,numB 等于 numD。
以上提示语为根据原始绘图命令整理而来,仅供参考。