Jochen Rick. Quadratic: manipulating algebraic expressions on an interactive tabletop. In Narcís Parés, Miquel Oliver, editors, Interaction Design and Children, Proceedings of the 9th International Conference on Interaction Design and Children, IDC 2010, Barcelona, Spain, June 9-12, 2010. pages 304-307, ACM, 2010. [doi]
Abstract is missing.