You are about to send the following abstract:
Chang, T.W., Hsu, J.M., Yu, P.T. & Chang, Y.H. (2010). Constructing Learning Objects by Using Two-Layer Screen-Capture Authoring Tool – A Case Study in Online Mathematical Instruction. In J. Herrington & C. Montgomerie (Eds.), Proceedings of ED-MEDIA 2010--World Conference on Educational Multimedia, Hypermedia & Telecommunications (pp. 3023-3028). Toronto, Canada: Association for the Advancement of Computing in Education (AACE).