Some suggested reading around the project topic, starting early, to give an historical perspective to more recent developments.  If you are unable to source any of these, Stuart can probably send you a copy.

Loftin, R. B., Engleberg, M. & Benedetti, R. (1993). Applying virtual reality in education: A prototypical virtual physics laboratory. Proceedings of the IEEE 1993 Symposium on Research Frontiers in Virtual Reality, 67-74.

Johnson, W. L. (1995). Pedagogical agents for virtual learning environments. Proceedings of the International Conference on Computers in Education, Singapore, 41-48.

Moore, P. (1995). Learning and teaching in virtual worlds: Implications of virtual reality for education. Australian Journal of Educational Technology, 11(2), 91-102.

Pugnetti, L., Mendozzi, L., Motta, A., Cattaneo, A., Barbieri, E. & Brancotti, A. (1995). Evaluation and retraining of adults' cognitive impairments: Which role for virtual reality technology? Computers in Biology and Medicine, 25(2), 213-227.

Usoh, M. & Slater, M. (1995). An exploration of immersive virtual environments. Endeavour, 19(1), 34-38.

Pantelidis, V., S. (1997). Virtual reality and engineering education. Computer Applications in Engineering Education, 5(1), 3-12.

Brna, P. & Aspin, R. (1998). Collaboration in a Virtual World: Support for Conceptual Learning? Education and Information Technologies, 3(3), 247-259.

Fang, X. D., Luo, S., Lee, N. J. & Jin, F. (1998). Virtual machining lab for knowledge learning and skills training. Computer Applications in Engineering Education, 6(2), 89-97.

Bowman, D. A. & Hodges, L. F. (1999). Formalizing the Design, Evaluation, and Application of Interaction Techniques for Immersive Virtual Environments. Journal of Visual Languages & Computing, 10(1), 37-53.

Brooks, B. M., McNeil, J. E., Rose, F. D., Attree, E. A. & Leadbetter, A. G. (1999). Route Learning in a Case of Amnesia: A Preliminary Investigation into the Efficacy of Training in a Virtual Environment. Neuropsychological Rehabilitation, 9, 63-76.

Geroimenko, V. & Phillips, M. (1999). Multi-user VRML environment for teaching VRML: immersive collaborative learning. Proceedings of the 1999 IEEE International Conference on Information Visualization, 45-47.

Gorman, P. J., Meier, A. H. & Krummel, T. M. (1999). Simulation and Virtual Reality in Surgical Education: Real or Unreal? Arch Surg, 134(11), 1203-1208.

Johnson, A., Moher, T., Ohlsson, S. & Gillingham, M. A. G. M. (1999). The Round Earth Project: deep learning in a collaborative virtual world. Proceedings of the Virtual Reality, 164-171.

Slator, B. M., Juell, P., McClean, P. E., Saini-Eidukat, B., Schwert, D. P., White, A. R. & Hill, C. (1999). Virtual environments for education. Journal of Network and Computer Applications, 22(3), 161-174.

Brown, J. R. (2000). Enabling educational collaboration -- a new shared reality. Computers & Graphics, 24(2), 289-292.

Jelfs, A. & Whitelock, D. (2000). The notion of presence in virtual learning environments: what makes the environment "real". British Journal of Educational Technology, 31(2), 145-152.

Kameas, A., Pintelas, P., Mikropoulos, T. A., Katsikis, A. & Emvalotis, A. (2000). EIKON: Teaching a high-school technology course with the aid of virtual reality. Education and Information Technologies, 5, 305-315.

Kaufmann, H., Schmalstieg, D. & Wagner, M. (2000). Construct3D: A Virtual Reality Application for Mathematics and Geometry Education. Education and Information Technologies, 5, 263-276.

Kommers, P. (2000). Imagination through virtuality for in-depth learning. Proceedings of the International Workshop on Advanced Learning Technologies, 2000, 3-6.

Rizzo, A. A., Buckwalter, J. G., Bowerly, T., Van Der Zaag, C., Humphrey, L., Neumann, U., Chua, C., Kyriakakis, C., Van Rooyen, A. & Sisemore, D. (2000). The Virtual Classroom: A Virtual Reality Environment for the Assessment and Rehabilitation of Attention Deficits. CyberPsychology & Behavior, 3(3), 483-499.

Sánchez, Á., Barreiro, J. M. & Maojo, V. (2000). Design of Virtual Reality Systems for Education: A Cognitive Approach. Education and Information Technologies, 5, 345-362.