From both the positive and negative side this article proves why actual problem becomes the contact point of Chinese Marxism and the understanding of the actual problem and setting the position in applying and developing theory of Marxism.

The transform ways from practical problems to physical problems;

Therefore, when we straighten out one s thinking, we must try to solve some practical problems, thus eliminating the material root-causes of the ideological problems.

During the teaching and training of the mathematical modeling,several relationships between mathematical modeling and following things should be handled well including that of the mathematical knowledge in middle school,that of the practical problems,specialized problems and computer assisted instruction.

This paper introduced the purpose,significance,approaches,effects and experience of setting up research-type chemical experiments based on practical problems.

On the basis of literature reviews, the study developed two self-enhancement questionnaires that measure the above-average effect and the unrealistic optimism separately, and then validated its good reliability and distinction.