60 unique LEGO challenge cards in 5 beautiful colors - - - red, orange, blue, green, and purple!__________________________________________________________These Lego challenge cards are fantastic for a fast design challenge. The perfect addition to any makerspace, these are great to add to STEM bins for early finishers. They are designed to get your students thinking creatively, to inspire problem solving, and to allow for open engineering. Throw a handful of Lego blocks into a plastic bin with a