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20170724GGB
20170724GGB
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Nous materials
Fibonacci Clock
Nested spiral octagon
小数 的副本
四邉形 (四年級) 教師版
sanjiaohanshu
Descobriu materials
Addition and Subtraction of Directed Numbers (2) 有向數加減(2)
軌跡,摺紙,滾動,實驗觀察,曲線
面外一點
Congruent Triangle (SSS)
test
Quiz on Addition and Subtraction of Directed Numbers (2)
Descobriu Temes
Paràbola
Diagrames
Corbes paramètriques
Àrea
Nombres naturals