TY - CONF T1 - A case study of tangible flags: a collaborative technology to enhance field trips T2 - Proceedings of the 2006 conference on Interaction design and children Y1 - 2006 A1 - Chipman,G. A1 - Druin, Allison A1 - Beer,D. A1 - Fails,J. A A1 - Guha,M.L. A1 - Simms,S. JA - Proceedings of the 2006 conference on Interaction design and children ER -