Andre, T., & Veldhuis, G. H. (1991). Use of computers by physics and physical science teachers. Journal of Computer-Based Instruction, 18, 113-117.
 BenJacob, M. G., Levin, D. S., & BenJacob, T. K. (2000). The learning environment of the 21st century. Educational Technology Review, 13, 812.
 Duggan, S., & Gott, R. (1995) The place of investigations in practical work in the UK National Curriculum for Science. International Journal of Science Education, 17, 137-147.
 Hudson, B. (1997). Group work with multi-media in mathematics: The role of the technology and of the teacher. British Journal of Educational Technology, 28, 257-270. doi:10.1111/1467-8535.00033
 Jonassen, D. H., Peck, K. L., & Wilson, B. G. (1999). Learning with computer technology: A constructivist approach. Princeton, New Jersey: Merrill.
 Keller, C. (2005). Virtual learning environment: Three implementation perspectives. Learning, media and technology, 30, 299-311.
 Kiboss, J. K. (2000). An evaluation of teacher/student verbal and non-verbal behaviors in computer-augmented physics laboratory classrooms in Kenya. Journal of Information Technology and Teacher Education, 9, 199-213.
 Kiboss, J. K. (2010). Pupils’ perceptions of the teacher’s changing role in e-learning physics classroom instruction. Creative Education, 1, 33-38. doi:10.4236/ce.2010.11006
 Kiboss, J. K., & Ogunniyi, M. B. (2003). Influence of a computer-based intervention on students’ conceptions of measurement in secondary school physics. Themes in Education, 4, 203-217.
 Kiboss, J. K., & Ogunniyi, M. B. (2005). Learning outcomes of first year secondary students in a computer-augmented physics program on measurement. Learning, Media and Technology, 30, 313-326.
 Kenya Institute of Education [KIE] (1992) Ministry of Education secondary education syllabus (Vol. 7). Nairobi: Kenya Literature Bureau.
 Kenya Institute of Education [KIE] (1999). Formative evaluation of the secondary education curriculum. Research Report Series, 22, 27.
 Lemke, J. L. (1995). Textual politics:discourse and social dynamics. London: Taylor and Francis Ltd.
 Linder, C. (1992). Is teacher-reflected epistemology a source of conceptual difficulty in Physics? International Journal of Science Education, 14, 11-121. doi:10.1080/0950069920140110
 Mayer, R. E., & Moreno, R. (2003). Nine ways to reduce cognitive load in multimedia learning. Educational Psychologist, 38, 43-52.
 Miles, M. B., & Huberman, A. M. (1984). Qualitative data analysis. London: Sage.
 Ndirangu, M. (2000). A study of the perception of the influence of teaching practice projects on the teaching of science in selected secondary schools in Kenya. Unpublished Ph.D. thesis, Njoro, Kenya: Egerton University.
 Ndirangu, M., Kathuri, N. J., & Mungai, C. (2003). Improvisation as a strategy for providing science teaching resources: An experience from Kenya. International Journal of Education Development, 23, 75-84. doi:10.1016/S0738-0593(01)00054-2
 Ogunniyi, M. B. (1992). Understanding research in social science. Ibadan: University Press.
 Okere, M. I. O. (1988). Meanings and measures of creativity for physics education. Kenya Journal of Education, 4, 162-168.
 Park, O. C., & Hopkins, R. (1993). Instructional conditions for using dynamic visual displays: A review. Instructional Science, 21, 427- 449. doi:10.1007/BF00118557
 Patton, M. Q. (1991). Qualitative evaluation methods. Beverly Hills, CA: Sage Publications.
 Robinson, H. A. (1994). The Ethnography of empowerment: The transformative power of classroom interaction. Bristol: The Palmer Press.
 Roth, W. M., & Roychoudhury, A. (1992). The social construction of scientific concepts or the concept map as a conscription device and tool for the social thinking in high school science. Science Education, 76, 531-557. doi:10.1002/sce.3730760507
 Schar, G. S., & Kruefler, H. (2000). Empirical research on the effect of dynamic media for information presentation. Zurich: Swiss Federal Institute of Technology.
 Smith, C., Carey, S., & Wiser, M. (1985). On differentiation: A case study of the development of the concepts of size, weight, and density. Cognition, 21, 177-237. doi:10.1016/0010-0277(85)90025-3
 Talsma, V. L. (1997). How can we measure student understandings in science? Ann Arbor, MI: School of Education, University of Michigan.
 Wekesa, E. (2003). Effects of a computer-based instruction simulation module on students’ achievement, perception of the classroom environment and attitude towards school biology in Nakuru district, Kenya. Unpublished Master’s Thesis, Njoro: Egerton University.
 Wekesa, E., Kiboss, J. K., & Ndirangu, M. (2006). Improving students’ understanding and perception of cell theory in School Biology using a computer-based instruction simulation program. Journal of Educational Multimedia and Hypermedia, 15, 397-410.
 White, R., & Gunstone R. (1992). Probing understanding. New York: The Falmer Press.
 Wragg, E. C. (2000). An introduction to classroom observation. London: Routledge.
 Zumbach, J. (2006). Cognitive overhead in hypertext learning reexamined. Journal of Educational Multimedia and Hypermedia, 15, 411- 432.