I began teaching high school math and physics after graduating LSU in 1975.  I taught in public, Catholic, and prep schools for about 30 years.  During my career, computers entered the schools for the first time and I became deeply involved.  For a while I wrote educational software through my own company.  After I retired from teaching I continued online tutoring for a few years.  I am now using my last few years creating the Physics Teacher's Tool Box, a resource culled from my long career.