Experimental attitude of the students is corrected by strict implementation of two ＂hard＂ criterions. Experimental in- terest of the students is greatly stimulated by progressive heuristic questions to dig core values and potential of chemical laboratory courses. A vital part of teaching is further improved by deeply careful study on teaching material details. Experimental thinking ability of the students can be enhanced by connotation require- ment of experimental reports. Teaching connotation is imple- mented by timely information feedback ...
