The test to assess young children\'s composition of geometric figures in this study was adapted from the measure created by Clements and colleagues (Clements, Wilson & Sarama, 2004a), and the other test to examine young children\'s naming and recognition of geometric figures was developed by the investigator based on related studies.

The test to assess young children\'s composition of geometric figures in this study was adapted from the measure created by Clements and colleagues (Clements, Wilson & Sarama, 2004a), and the other test to examine young children\'s naming and recognition of geometric figures was developed by the investigator based on related studies.

In order to cultivate the ability to think in space in the teaching of sketch,it is necessary to have a good mastery of the shape of geometry constituted by points and lines at the beginning state of realistic sketch,This is the basic medium and method in embodying precisely the sense of depth and volume of three-dimensional space in the two-dimensional level.

On Kant,Husserl and Wittgenstein s Approaches to the Philosophical Thought of Geometric Figure;

Finally the paper shows the realization of algorithm by vc++ language,which can recognise the regular geometric figure in the computer using this program.

This paper defines fuzzy sets, researches some problems of fuzzy mathematic and discusses the subjects of geometric figure with the concept of convex sets.

The problems of optimization and optimal geometrical figure of the resection are discussed in the paper, moreover, a practical and simple method for determining the reliable point position is given.

The E_R Model of Characteristic Parameter Library for One Class of Part was given and general methods for programming searching system and parametric geometry graphics were analyzed.