Explore stem concepts while building a working roller coaster using the materials included in this set children will be engaged and energized as they further their knowledge and understanding of the science technology engineering and math concepts associated with a real life amusement park ride the set includes over 500 parts plus a battery powered motor for a single child or team of 2 3 children to build a working roller coaster plus 2 additional models a ramp and a half pipe each model can b