比较幂值

比较幂值
几何画板及绘图内容加载中,请稍等……
2018-09-25 03:15
①本范例演示如何比较两个幂值以判断它们是否相等;②涉及的核心数学概念包括指数运算、幂值比较、不等式判断;③作图要点提炼自构造摘要,使用了Random、If、Polygon、UnicodeToLetter、IsInRegion、LaTeX等GeoGebra命令/对象,用于生成随机幂值、条件判断、图形绘制与文本显示;④适合初中及以上数学学习者,用于理解指数运算和不等式概念。

GeoGebra 命令及参数

  1. Random(1, 9) → baseTemp
  2. If(Random[0, 1] ≟ 0, baseTemp, (baseTemp * (-1))) → base2
  3. If(Random[0, 1] ≟ 0, baseTemp, (baseTemp * (-1))) → base1
  4. Random(2, 15) → exponent
  5. Polygon(A, B, C, D) → box, a, b, c, d
  6. UnicodeToLetter(10007) → xmark
  7. UnicodeToLetter(10003) → cmark
  8. If(base1 < 0, (powerTemp * (-1)), powerTemp) → leftPower
  9. IsInRegion(midNotEquals, box) → isNotEqualsInRegion
  10. IsInRegion(midEquals, box) → isEqualsInRegion
  11. Polygon(anchorEquals, anchorEquals + (widthOfEquals, 0), anchorEquals + (widthOfEquals, (-heightOfEquals)), anchorEquals + (0, (-heightOfEquals))) → dragBoxEquals, anchorequals, f, g, h
  12. Polygon(anchorNotEquals, anchorNotEquals + (widthOfNotEquals, 0), anchorNotEquals + (widthOfNotEquals, (-heightOfNotEquals)), anchorNotEquals + (0, (-heightOfNotEquals))) → dragBoxNotEquals, anchornotequals, i, j, k
  13. LaTeX("\text{\textbf{Question: }Are these powers equal or not equal?\\\textbf{Instructions: }Drag the appropriate symbol into the box in order to make a true\\statement.}") → TEXT
  14. LaTeX("\text{Only drag one symbol into the box.}") → errorBothDragged
  15. LaTeX("\text{Please drag a symbol into the box.}") → errorNoneDragged