This set of teaching aids is used to identify length relationships. Children can recognize by touch and vision so that they can correctly understand the difference in the meaning of length. Through this material, children can also conclude that for any n, the sum of numbers to the nth number is always (N2 + n) / 2.We use high-quality materials to make these teaching aids. You can rest assured that children can use them.
Size : 13.5”L*5.7”W*1.1”H
100% China Design & Production
Shipping from Dalian Port, China
The user-friendly design makes any assembly easy and the tools free.
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One-year warranty, Rest assured of quality
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