sentences:  He taught at the Royal College of Art from 1948, and was Professor of Sculpture from 1960 to 1980, where his students included Robert Clatworthy and Elisabeth Frink.He was a member of the Fine Arts Commission from 1971 to 1976.He returned to assist Moore at Perry Green, Hertfordshire from 1977, after Moore's health started to fail, and continued to help his mentor's estate after Moore's death in 1986, becoming an acting director of the Henry Moore Foundation.