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容積盒子(加蓋)
Author:
康靖坤
輸入：長、寬、高、厚 選擇模式：闔蓋、打開 選擇顏色
GeoGebra
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異分母分數減法
【案例】2018年全国1卷理科12题
四邉形 (四年級) 教師版
兩位數除以一位數（一）
拼砌四邊形
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假的龍珠
cos(π/n)cos(2π/n)cos(3π/n) ... cos(nπ/n) = ?
第二次:20190110
Copy of 正方体展开图
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Discover Topics
Plane Figures or Shapes
Scatter Plot
Upper and Lower Sum or Riemann Sum
Power Functions
Subtraction