My stepfather, Jeremy Danziger, who has died aged 75, was an artist, sculptor and proud stalwart of the 20th-century art school. Faced with the rise of conceptualism, he stressed the importance of learning the fundamentals of mark-making, perspective and drawing from life. His own work, while largely abstract, was founded on these qualities.
Jeremy was interested in producing art based on experiments in mathematical probability and chance. Geometry was an obsession. He frequently made his own compasses and tools, and was partial to using collage in both two and three dimensions. His drawings typically developed as series, so that interactions were generated between them.