"I'm an old guy, now 72. Retired from 30 years federal government senior executive service (military equivalent rank of general/admiral), including 6 years as a Naval Air Corp officer(1960s). My 8-9 full time college years included 6 universities on three continents (BA, MA, Ph-D). I have no formal teaching credentials or experience. I have done some tutoring of adults, and this year 2011) did about 4 months of 7th grade home schooling of my granddaughter who just entered private high school, ski"