At NTNU he ran an "ink-wash drawing" class in which students were encouraged to paint using a bold variety of brush strokes, without having to adhere to the traditional requirement for graceful lines, if necessary even "uglifying" the subject as a means of finding their own brush style.
他還在學校開過一門「水墨素描」，鼓勵學生放心大膽以各種水墨筆法來描繪物品，不必拘泥於傳統的優美線條，甚至可以「醜畫」來摸索出自己的筆法。