I am a retired public school teacher and administrator. When I was employed as a public school math teacher, I taught all of the math classes in grades 7-12 at one time or another. In addition, I have taught math courses at North Central State College in Mansfield, OH and Ashland University in Ashland, OH.In 1987 I was selected as the most outstanding math teacher in Ohio by the Battelle Institute in Columbus, OH.