so the paper mainly discusses the following aspects: the training methods,teaching methods at different levels controling methods during different course and teaching means.

Research and practice in leveled teaching of foundational chemistry in geoscience;

Research on leveled teaching of College Basic Computer Science;

The teaching of higher mathematics should be reformed,which is discussed from the aspect of teaching at different levels and the aspect of conducting students to learn with pleasure and self-direction.

The paper illustrates the feasibility of college English teaching at different levels in Polytechnics in respects of theory and objective requirement.

Classroom teaching at different levels is a countermeasure of improving teaching efficiency.

Exploration and practice on layered teaching for compile technology

To change the situation,layered teaching has been adopted by a number of universities.

Based on a summary of the authors experience over the years,a discussion is presented on the need for layered teaching of higher mathematics and the methods for implementing such layered teaching.

The organization way for stratified teaching in our institute is still in the stage of exploration.

classes, while others would have physical burnout with the same amount of exercise, stratified teaching was suggested in this paper.