A Development of Game-Based Learning Environment to Activate Interaction among Learners - Ryo Takaoka; Masayuki Shimokawa; Toshio Okamoto (IEICE Trans. Inf. Syst., 2012)

A Design Principle and Collaborative Learning Support Method in Game-based Learning Environment - Ryo Takaoka; Masayuki Shimokawa; Takuya Nitta; Toshio Okamoto (Proceeding of the 20th International Conference on Computers in Education, ICCE 2012, Singapore, November 26-30, 2012, 2012)

A Framework of Educational Control in Game-based Learning Environment - Ryo Takaoka; Masayuki Shimokawa; Toshio Okamoto (ICALT 2011, 11th IEEE International Conference on Advanced Learning Technologies, Athens, Georgia, USA, 6-8 July 2011, 2011)

A Practice and Evaluation of Game-based Learning Environment for Linear Equation - Ryo Takaoka; Masayuki Shimokawa; Toshiaki Honda; Toshio Okamoto (18th International Conference on Computers in Education, ICCE 2010, Putrajaya, Malaysia, November 29 - December 3, 2010, 2010)

Collaborative Process Among Learning Support Agents in Game-based Learning Environment - Ryo Takaoka; Masayuki Shimokawa; Toshiaki Honda; Toshio Okamoto (18th International Conference on Computers in Education, ICCE 2010, Putrajaya, Malaysia, November 29 - December 3, 2010, 2010)