Mathworld algebraic identity(a+b)3 mathematics learning kit cube set to learn and understand math formula manipulative is must to have for kids learning in home or classroom,dissectible

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THIS IS A MATH LAB APPARATUS. VERY USEFUL AND EFFECTIVE TO TEACH MATHS TO CHILDREN. WE RECEIVED GOODS WELL PACKED, IN TIME IN PERFECT CONDITION. INSTRUCTIONAL BOOKLET IS ALSO SELF EXPLANATORY.