Many people helped us with the content of this course.

We are especially grateful to:

Marja Brandon
Allan Fisher
Geneva Gay
Angela Ginorio
Rosetta Lee
Jane Margolis
Warren Smith
Young Sook

These materials were developed under subcontract to Carnegie Mellon
University in a grant from the National Science Foundation. Any opinions,
findings, conclusions, or recommendations expressed here are ours and do not
necessarily represent the official views, opinions, or policy of the
National Science Foundation.