SLATE combines tangible toolkits with an interactive display to engage children in hands-on learning. By arranging magnetic pieces in different configurations on the vertical screen, children solve challenges and create solutions that subsequent children can view and learn from. Designs are automatically documented using a rear-mounted image detection system, which enables post-hoc assessment and reflection. With our latest toolkit, Mechanix, children build Rube-Goldberg designs composed of simple machine components. We are in the process of developing new toolkits for other subject areas — stay tuned for more information!