K'NEX Education STEM Explorations Levers and Pulleys Building Set

139 parts to build unique, fully-functioning replicas of real-world models: a balance, a wheelbarrow and a sailboat
Includes 3 after-build experiments that teach STEM concepts like lever classes, pulley systems, effort and more
Easy-to-follow, step-by-step building instructions included
All teacher guides and experiment guides are aligned to national standards, including ITEEA, NSES, NCTM, NGSS and Common Core
Recommended for grades 3 to 5, one set is recommended per two students

Brand : KNEX