Tangram: Introduction of the Triangle. Two studies are actually created. Goal is to use all the shapes produced from three differently sized tangrams to produce two studies that appear to have "gen-like" qualities. The use of white (as a faceted highlight) is a vehicle to get them to think of negative space as a vital component in composition. The circle – or "portion of" – is used to create a linkage or a transition either between shapes or from a shape to the edge of the working area.