Copyright Information

Permission is hereby granted to print and use this material with an individual teacher's student or class of students. This material may not be copied or distributed in any manner for commercial purposes. Permission for any other use must be obtained by contacting COMETS, National Technical Institute for the Deaf, Rochester Institute of Technology, 96 Lomb Memorial Drive, Rochester, NY 14623, Attn: Dr. Harry Lang.

This material is based upon work supported by the National Science Foundation under Grant No. HRD-9550468. Any opinions , findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect those of the National Science Foundation.

If this material is cited in a publication, please use the following:

Lang, H. G. (In progress). Clearinghouse On Mathematics, Engineering, Technology, and Science (COMETS). http://www.rit.edu/~comets. National Science Foundation Grant HRD-9550468.