Complex sentence: He began coaching high school basketball in California in 1956, and moved to college ball at Riverside City College from 1961--1966 and Pasadena City College from 1966-68.
Split into simpler sentences: He began coaching high school basketball in California in 1956. He then moved on to college ball at Riverside City College from 1961--1966 and Pasadena City College from 1966-68.