Educational toy: the learning set includes 178 pieces and is designed to introduce students to the scientific concepts associated with two types of simple machines; levers and pulleys. This learning set supports 2-3 students working as a team Kids construction toy: using k’nex rods and connectors, up to three kids can work together as the included teacher's cd guides them through 8 fully-functioning replicas of real-world machines aligned with key stage 1/2 stem standards Age & suitability: great for supporting an inquiry-based approach to information and concepts for kids aged 8 and up, this science kit for kids is ideal for both learning and play, with comprehensive lesson plans and pupil instructions included Set for classroom or homeschooling: ideal as a birthday gift or christmas present for boys and girls. This construction toy is a great set for classroom settings supporting teamwork while building coordination and communication skills, Manufacturer: Basic Fun