STEM challenge task cards - features 14 full color pictures for students to try to replicate with pattern blocks! Simply print and place in page protectors. Or print 2-4 slides to a page, laminate, and put on a ring to go with your pattern block math manipulatives. Scaffolds children's learning with a variety of difficulty levels - flat designs, towers, and bridges. Print & go! All you need is pattern blocks and a flat surface.