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Author:keith leung, Tim Brzezinski

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New Resources

  • 近似值:有效數字
  • 兩組對邊相等和有直角的四邊形
  • 兩位數加法
  • 找出對稱軸
  • 直角坐標平面上的旋轉變換

Discover Resources

  • 證平行四邊形 (對邊相等)
  • 利用Geogebra說明y=ax2+bx+c圖形性質
  • 抛物线顶点形成椭圆动画
  • 同角三角函数的基本关系(正六边形记忆法)
  • 单位圆与正弦函数

Discover Topics

  • Rectangle
  • Arithmetic
  • Fractions
  • Functions
  • Plane Figures or Shapes
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