Ralph P. Iacangelo 80, a former biology and chemistry teacher at Bethesda-Chevy Chase High School, died of cancer Nov. 17, 2004 at Holy Cross Rehabilitation and Nursing Center. He had lived in Silver Spring.
He taught at Bethesda-Chevy Chase from 1950 to 1979 and served for a time as department chairman. He continued to substitute teach there until 1993.