material is based upon work supported by the National Science Foundation
under Grant Number 9653194. Any opinions,
findings, and conclusions or recommendations expressed in this material
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would also like to express our gratitude for the help and support
of Carnegie Mellon's Office of Technology for Education. The OTE provided
much-needed technical support, as well as the ongoing use of the Technology
Enhanced Learning Laboratory (TELab). For more information on the
OTE, go to http://www.cmu.edu/teaching/.
thanks to Steve Bajzek of the Bajzek Group, Inc. for his work on the creation of graphics for
this site. His time, input, and expertise were much needed and are
greatly appreciated. http://bajzek.com