正方形四等分教具

正方形四等分教具

$6.99
Sale price  $6.99 Regular price 
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正方形四等分教具

正方形四等分教具

$6.99
Sale price  $6.99 Regular price 
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小朋友做题遇到正方形四等分的题目,对于横切、竖切、十字切、X切、三角切都能理解,但不太能理解中心十字切任意角度都能把正方形四等分。

所以就做了个小教具,可以比较直观地演示不同角度的情况。

 

做得比较仓促,只展示了中心十字切的情况,等后面有空了把横切、三角切的情况也加进来。

不需要额外零件,直接打出来卡上就能用。

 

希望能帮到有类似需求的小朋友 :-)

Design by youneigui on MakerWorld (license: BY-SA).

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