The Simple Machines Deluxe set is designed to introduce students to the scientific concepts associated with simple machines ; Levers, Pulleys, Wheels and Axles, Inclined Planes, including Wedge and Screw and Gears. This 3447 knex piece set builds 60 working machines, including a 1.5m high ball factory, carousel, lawn mower, crane, inclined planes, bicycle gears, balance and archimedes screw. The set allows up to 10-16 student to work together and comes with student instruction booklet, teacher guide and lesson plans. The teachers guide provides a glossary of key terms and definitions, includes an overview of the concepts associated with the different simple machines, identifies student objectives for each investigation, and offers plans and scripts to successfully present selected models and their associated activities. Student activity and reference sheets comprise illustrations and definitions of some of the concepts featured in the model building activities. Key concepts covered include energy transfer, effort and resistance forces, mechanical advantage, motion and force. Accelerate learning through hands on exploration and experimentation. There are assembly instructions for 60 fully functioning models; multiple models simultaneously. Stem education focuses on science, technology, engineering and mathematics concepts taught through problem-solving, discovery, exploratory learning and critical thinking. Stem education requires students to be active participants in the learning. Knex models offer hands-on learning opportunities that encourage scientific inquiry, investigation and experimentation. Size H31.75, W35.56, D51.44cm. (not included) plus . For ages 8 years and over. WARNING(S): Not suitable for children under 3 years old. Only for domestic use.