I taught Microbiology at the Dental School for 6 years (1976-1982) then moved to England, where I became a company secretary. Back in Mexico I started teaching Natural Sciences in primary, then in Secondary and High School teaching Biology, Chemistry (organic and inorganic), Social Studies (History), Language Arts, Environmental Science, etc. from 1996 till 2012. I then worked for a languages school where besides teaching English I also worked as the English department coordinator. I prepared content of ESL for several websites from 2012 till Dec. 2024, stopping for two years (I moved where there was no internet), starting again 2020-24. Now I´m interested in self-employment preparing content for English learners.