Have you ever been about to finish a puzzle, when suddenly you realize there are more holes left than you have pieces? With [Nikolaos’s] 3D printed sliding puzzles, this will be a problem of the past!
Simple toys that one can make with a 3D printer include a card-sized crossbow, a stacking puzzle game, and a one-piece glider ...
The puzzles were to engage elementary students and included esti-mysteries, an activity based on the newest math course.
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