Abstract Classroom tnstructtonal destgn is a very complex teachtng acttvtty,whtch needs tohandle the connection between teachers,students,content,media and many other factors. As avisual instructional design tool,mapping can make complicated instructional design visualization,teaching process briefly and hierarchical,and all kinds of teaching factors clear,so it is consid-eyed as a blueprint of classroom teaching. This paper introduces three classical forms of mapping,and develops teaching map. Furthermore,application of teaching map in chemistry instructionaldesign is discussed with the case of ionic reaction based on ideas of new chemistry curriculum re-form.
