A positive analysis about the market pricing ofhi-tech concept stock in China;

The thesis analyzes how to construct a science concept through gradually abstraction and describe the inside contradiction of it,such as,clear and misty,subjective and objective,stability and varability.

The science concept is the cornerstone of the scientific theory system and the science concept’s teaching is an important part of science education.

The scientific concept in the library science system is the subject of scientific research.

Before the study of scientific concepts, students have already formed their views on all kinds of natural phenomena.

Vygotsky,the famous Soviet Psychologist has made research on the forming of scientific concepts in students thinking process from a special angle of view,which is significant in Mathematics concept teaching.

By means of the paradigms of word high speed classifying, sentence verification and picture high speed classifying, the present study explored the effect of the ways of linguistic expression on the semantic recovery time of scientific concepts.

Fact-surpassing science teaching has,in the process of design and implementation,the concrete scientific concepts and conceptual ideas at its core and the concrete factual knowledge and theme as the tools,aimed at developing students\'thinking ability and promoting their understanding of science so that students will have a higher scientific quality.