K'NEX Education STEM Explorations Gears Building Set

143 parts to build unique, fully-functioning replicas of real-world gear models: a crank fan, an egg beater, and a car window
Includes 3 after-build experiments that teach STEM concepts like gear ratios, rotational speed 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