The representation of chemical concepts is an important topic in educational psychology for chemistry.

Learning chemical concepts is the basis of good learning of chemistrv.

Based on the main views of Constructivism Learning theory, this paper presented four ways for making the teaching of chemical concepts easier: using students prior knowledge; creating teaching situation to help students understand the concepts; constructing the concepts in learning activities; and describing the concepts with the aid of graphic drawings.

In chemistry concept teaching various kinds of go-ahead organizers should fully be used to promote students understanding of concept meaning and enhance their ability of solving problems.

However, in the teaching practice, there is a common problem that the students can accurately write the chemistry concepts, but can’t understand it clear.

The chemistry concept in senior high school is a very important part in the basic structure of the entire course.

In this article the writer tells the differences of sixteen linking but different chemical concepts that are frequently used but easily confused.

The understanding and mastering of chemical concepts is theessential condition to improve students logical thinking ability.

The representation of chemical conception,an important research subject in chemical educating psychology,is a representation expressed by means of proposition,image,production system and schema etc.

Chemical conception is one of the most important parts of the basic construction of chemical education.