Click for info on your favorite wallpaper group

  Links to course web pages.
  Calculus links.
  Primal Scream,  a solution to an intriguing mathematical "brain teaser".
  Recursive Enumeration of Pythagorean Triples (with Elizabeth Wade), College Math. J. 34 (2003), 107-111.
  Height and Excess of Pythagorean Triples, Math. Mag. 78 (2005), 26-44.
  Mathematical Miscellanea,  a small personal collection.
  List of all courses I taught at OU.
  Transparencies for talks on educational topics.