Unleash creativity with the original tinkering kit!Engineering and mechanics for grades 3-6. Expand your Electric Motors Catalyst build options with the Catalyst Booster Bundle: a super-charged version of the original Catalyst Kit. Catalyst Booster Bundle Includes: All of the parts, tools, storage, and challenge cards included in the Electric Motors Catalyst Kit PLUS... 2 motors with wires, casings, and bushings 6 LEDs -yellow, red, green, blue, white, and orange Additional set of Electric Motors Catalyst wooden parts 1 Chassis 12 wheels in various sizes 2 L-shape wooden connectors 2 short wooden connectors 2 long wooden connectors 1 AA battery pack for LEDs - requires 3 batteries not included 1 AAA battery pack for motors - requires 2 batteries not included The Tinkering Labs Difference: CHALLENGES, NOT INSTRUCTIONS: There’s no “right” way to use the pieces of a Tinkering Labs Catalyst. Instead of providing step-by-step instructions to build specific projects, we provide basic fundamentals about how the parts work together, then challenge students to build their own creations. REAL PARTS: This is more than a craft project—we include real hardware and tools. Some parts are custom-designed, and some are what you can find inside home appliances or the hardware store. INSPIRE AND INVENT OVER AND OVER AGAIN: Catalysts are not a one-time activity or a single project. Instead, they’re meant to be made and unmade and remade over and over in as many ways as students can imagine.