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Negative Integer Dice for practicing math operations with negative integers. Two designs; -1 to -6 and -7 to -12.
Read more about the creation of this design for an English Language Learner math class at http://designmaketeach.com/2015/11/23/3d-printed-negative-integer-dice/
Model published for Virginia Council of Teacher of Mathematics 2016 conference presentation. Presentation materials available at http://DesignMakeTeach.com/3DMath