Ralph P. Iacangelo

Ralph P. Iacangelo  80, a former biology and chemistry teacher at Bethesda-Chevy Chase High School, died of cancer Nov. 17 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