Super-charge your STEM class with 52 high-engagement, critical thinking, problem-solving, NGSS-aligned challenges to take you through the entire year! Modifications are included to make these activities engaging and challenging for students in grades 2 - 8. (Note: Two of the 52 challenges are included in bonus file.) The basic premise: Students work in partners or groups against criteria & constraints lists and use a combination of science, engineering, math, and technology skills to design and