Due to the limitations of exercitation fee, cooperation unit and so, it is a great challenge to guarantee the efficiency of exercitation teaching for equipment majors. Taking the Building environment and energy application engineering as example, the Cardboard-Model- Method is adopt to optimize its exercitation teaching. By building cardboard models of components, equipments and the whole systems in sequence, it can promote students to know and master such equipments and systems, and also it can lead students to master and digest the principles...