1. J. Larkin and F. Reif, ..problem solving in physics, Eur. J. Sci. Ed. 1, 191, (1979); D. Maloney, Research in Problem Solving: Physics, in Handbook of Research on the Teaching and Learning of Science, D. Gabel (Ed.) MacMillan (1994); J. Mestre, R. Dufresne, W. Gerace, P. Hardiman, J. Touger, (1993), skilled problem solving.., J. Res. Sci. Teach., 30, 303-317 (1993); A. Van Heuvelen, Overview Case Study Physics, Am. J. Phys. 59, 898-907 (1991); P. Heller, R. Keith and S. Anderson, Teaching problem solving: Part I, Am. J. Phys. 60, 627, 1992; P. Heller and M. Hollabaugh, Part II, Am. J. Phys. 60, 637, 1992.
2. H. Simon, C. Kaplan, Foundations of cognitive science, Posner (ed.), MIT press, 1989.
3. See for example, A. Arons, A guide to intro. physics teaching, Wiley, 1990; L. C. McDermott, P. S. Shaffer, and the Physics Education Group, University of Washington, Tutorials in introductory physics, Prentice Hall, NJ, 2002.
4. See http://www.masteringphysics.com (developed by D. Pritchard et. al.)
5. A. Collins, J. Brown, and S. Newman, Cognitive Apprenticeship:.., In L. Resnick (Ed.), Knowing, learning, instruction.., Hillsdale, NJ: Lawrence Erlb., 453, 1989.
6. L. Vygotsky, Mind in Society, Harvard University Press, 1978; H. Ginsberg, and S. Opper, Piaget's theory of intellectual development, Englewood cliffs, Prentice Hall, N.J., 1969; A. H. Schoenfeld, Mathematical problem solving, New York: Academic press, 1985.