In this paper,we systematically study semantics of“qianhou、zuoyou、shangxia”, including space, time and approximate number (“qianhou”can t mean approximate number),The full text pluses preface to have five parts totally: The first part is introduction,This part is mainly about the study scope and object.

0 to find a new method,that is,the probability index of water inrush method to predict the water inrush from mining floor,The selection of the effected causes,the input data parameters,the determination of the exponents of the corresponding causes,the establishment of the mathematics models and the predictive method of water-inrush quantity have been stated in the way of programming t.

A new method, probability index of water inrush used in forecasting water inrush from mining floor is put forward.

A discussion for the symbol of factorial-products βε_i in probability function;

The effects of the shapes and dimensions of table tennis bat on table tennis ball head on impact probability have been investigated by an analytical method of probability function.

By means of the subdivision probability function, the algorithm continuously collapses triangles with differential errors.

Mathematics concept yeaching and learning supported by new techique;

Research on learning strategy about mathematics concept;

Survey of strategy in learning mathematics concept;