With our unique STEM cards, students can build, test and modify everything from robots and circuits to bridges and structures! The double-sided, 7" x 8" cards feature open-ended projects that can be built using materials from our fully loaded Maker Space Mobile Project Cart and common classroom items. You get 55 cards organized into 3 levels of difficulty across 4 categories, plus a 60-page teacher’s guide with examples of completed builds. Cards come in a handy storage box with dividers.