The teaching designing varies in content, teacher activities, teacher-student activities, situational visions, written class preparations, ppt, and physical equipment. Each of the teaching behaviors comprises teaching and learning, which can be divided into lectures, drive, control, display, action, exchanges, totalling nineteen types of seven cagegories. Teaching designing is a prelude to the formation of teaching behaviors, and a precondition for the teaching performance in class, and guarantee of the teaching efficiency. A comparative is done over two classes of chemistry. The difference of teaching designing results in impacts on the effect of the instruction.