References

• Clark, R. C.; Mayer, R. E. (2003). E-learning and the science of instruction. San Francisco: Jossey-Bass.
• Dewey, J. (1913): Interest and effort in education. Cambridge, MA: Houghton Mifflin
• Hohenwarter, M.; Preiner, J. (2007): Dynamic Mathematics with GeoGebra. Journal for Online Mathematics and its Applications, Volume 7, March 2007, Article ID 1448
• van Joolingen, Wouter (1999): Cognitive tools for discovery learning. International Journal of Artificial Intelligence in Education, 10, p. 385-397.

Links

• Creative Commons, http://creativecommons.org/
• Digital Classroom Resources, http://mathdl.maa.org/mathDL/3
• Free Software Foundation, http://www.fsf.org
• GeoGebra, http://www.geogebra.org
• GeoGebra Forum, http://www.geogebra.org/forum
• GeoGebraWiki, http://www.geogebra.org/wiki
• Library of Virtual Manipulatives, http://nlvm.usu.edu/en/nav/vlibrary.html
• Math Forum, http://mathforum.org
• MERLOT, http://www.merlot.org
• NVU, http://www.nvu.com