Teaching Research On "Preliminary Algorithm Of Arithmetic" In High School Mathematics

With the rapid development of information technology,people rely increasingly on computers to solve the problem,and the computer to solve any problem,will depend on the algorithm.Algorithm of thinking has penetrated into all the surface of the society.In the new curriculum reform in 2003,"preliminary" algorithm is presented in the high school mathematics compulsory 3,because the algorithm of "preliminary" teaching has not yet reached very skilled degree,and less involved in the subject in the university entrance exam scores,did not cause enough attention to some teachers and students,so the algorithm preliminary teaching effect is not very optimistic.Based on the theory of cognition and practice of investigation,the combination of the main content of the teaching for "preliminary" algorithm and the practical teaching of basic research.In this paper,first of all,from the macro and micro two dimensions analysis of the three typical version(taught A version,Beijing normal university version,Sue version)"compulsory 3" in the "preliminary" algorithm,to find the differences and similarities,and is worthy of reference for each of the content;Second,through questionnaire investigation and interview method to Beijing Normal University edition textbook users in "algorithm preliminary chapter" teaching practice investigation,and analyzes the results and improvement measures are put forward;Again,the example analysis "algorithm thought" infiltration in other branches of mathematics,strengthen students understanding and application of "algorithm thought";Finally to Beijing normal university version of the circulation structure in the teachers' teaching book teaching design as an example,on the basis of the improved scheme of the teaching design is given,in order to achieve better teaching effect.