Engage your 3rd, 4th, 5th, and 6th grade students with these 40 STEM Challenge Task Cards, featuring low-prep, hands-on engineering activities that build problem-solving, creativity, and critical thinking skills. Each challenge presents a clear engineering task, a real-world goal, and a short list of simple, classroom-friendly materials. Students design, build, test, and improve their solutions while practicing collaboration and the engineering design process. Perfect for teachers who want