积极 AI Logo 积极 AI

平行线识别

平行线识别
几何画板及绘图内容加载中，请稍等……
2019-03-07 02:40
函数解析几何几何作图
①本范例演示如何识别平行线；②涉及核心数学概念为平行线的判定与性质；③构造摘要中用到了Element, UnicodeToLetter, LaTeX, Text等GeoGebra命令/对象进行文本与图形的交互式展示；④适合初中及以上学生用于理解平行线概念及几何作图。

GeoGebra 命令及参数

  1. Element(questionList, questionListIndex) → questionNum
  2. UnicodeToLetter(10003) → cmark
  3. UnicodeToLetter(10007) → xmark
  4. Element(A2:A5, questionNum) → A
  5. Element(B2:B5, questionNum) → B
  6. LaTeX("y=-\dfrac{4}{5}x+9") → C2
  7. LaTeX("4x+5y=4") → D2
  8. LaTeX("y=\dfrac{4}{5}x+3") → E2
  9. LaTeX("-4x+5y=7") → F2
  10. LaTeX("y=\dfrac{1}{3}x+8") → E3
  11. LaTeX("3x-9y=2") → F3
  12. LaTeX("3x+9y=1") → D3
  13. LaTeX("y=\dfrac{2}{3}x-2") → C4
  14. LaTeX("y=-\dfrac{2}{3}x+3") → E4
  15. LaTeX("12x-18y=7") → D4
  16. LaTeX("-2x-3y=-5") → F4
  17. LaTeX("y=-\dfrac{1}{2}x-7") → C5
  18. LaTeX("y=\dfrac{1}{2}x+10") → E5
  19. LaTeX("7x+14y=3") → D5
  20. LaTeX("3x-6y=-12") → F5
  21. Element(C2:C5, questionNum) → correctRightText
  22. Element(D2:D5, questionNum) → correctLeftText
  23. Element(E2:E5, questionNum) → incorrectRightText
  24. Element(F2:F5, questionNum) → incorrectLeftText
  25. LaTeX("y=-\dfrac{1}{3}x+3") → C3
  26. Text(If[isLeftCorrect, correctLeftText, incorrectLeftText], puzzleAnchor + (2.5, 4), true, true) → matchedLeftText
  27. Text(If[isRightCorrect, correctRightText, incorrectRightText], puzzleAnchor + (8.7, 7.7), true, true) → matchedRightText
  28. LaTeX("-\dfrac{4}{5}") → G2
  29. LaTeX("-\dfrac{1}{3}") → G3
  30. LaTeX("\dfrac{2}{3}") → G4
  31. LaTeX("-\dfrac{1}{2}") → G5
  32. Element(G2:G5, questionNum) → slope
  33. LaTeX("\text{Line \(A\)") → questionText
  34. LaTeX((((("\text{\textbf{Question: }Line \(A\) passes through \(" * A) * "\) and \(") * B) * "\). Which lines are parallel to Line \(A\)?\\\textbf{Instructions: }Complete the puzzle by clicking on puzzle pieces that contain lines parallel\\to Line \(A\).}")) → TEXT