Study On The Training Strategy Of The Sense Of Small Nu Mber In Primary School Students

As the top ten core concepts of mathematics curriculum standard,number sense not only exists in all aspects of life,but also plays an important role in primary school mathematics teaching.The sense of decimal number is an important part of the sense of number.It also plays an important role in people's daily life and learning,which helps people to collect,judge,analyze and process decimal information.For example,in department stores,which stores offer more discount on clothing;in mathematics learning,we estimate the height of desks,chairs and stools.In these needs,the sense of decimal number is particularly important.Considering the current situation of the cultivation of the sense of decimal number,the primary school mathematics teachers' understanding of the connotation of the sense of decimal number is not comprehensive enough,which is easy to be ignored in the process of teaching implementation;the cultivation strategy of the sense of decimal number is not clear;the overall development level of the sense of decimal number of students needs to be improved,and the application ability of the sense of decimal number is not strong.In addition,there is little research on the training strategies of primary school students' sense of decimal number at home and abroad.Therefore,it is imperative to study the cultivation strategy of primary school students' sense of decimal number,which is conducive to enriching the theoretical system of primary school students' sense of decimal number,providing some reference and inspiration for primary school mathematics teachers to cultivate students' sense of decimal number,developing students' sense of decimal number,developing students' knowledge and skills,mathematical thinking,problem solving,emotional attitude,and promoting students' all-round development Face to face,sustainable and harmonious development.Based on the development theory of mathematical thinking,tacit knowledgetheory and constructivism learning theory,this study mainly uses the methods of questionnaire,literature and case analysis to study the cultivation strategy of the sense of decimal number of primary school students.First of all,from the formation,characteristics,connotation,elements and types of the sense of decimal number,this paper expounds the concept of the sense of decimal number,and probes into the cultivation dimensions of the sense of decimal number from the cultivation objectives,cultivation conditions,cultivation principles and effect evaluation,so as to explore the essence of the sense of decimal number.Secondly,through the questionnaire survey,we know that there is no obvious difference in the early development status of decimal sense between the experimental class and the control class in grade 4,5 and 6 of Chongqing C primary school,and the early status of teachers' Cultivation of decimal sense: most teachers understand the concept of number sense and decimal sense,but their awareness of cultivating students' decimal sense in the teaching process is not strong enough In the face of how to cultivate the sense of decimal number of primary school students also feel at a loss,there is no exact training strategy.Thirdly,the paper analyzes the cases of decimal sense in the primary school mathematics textbook of human education edition,such as the meaning of decimal,the comparison of the size of decimal,the approximation of product and foreign currency exchange,in order to build a better training strategy of decimal sense in the future.Then,based on the theoretical basis of tacit knowledge theory and constructivism learning theory,based on the noumenon meaning of the sense of decimal number,combined with the previous status quo and case analysis,the training strategy of the sense of decimal number is constructed: connecting with the life situation,understanding and perceiving the sense of decimal number;building the learning platform,mastering and comprehending the sense of decimal number;strengthening the special training,consolidating and strengthening the sense of decimal number;ingenious intentions Calculation and estimation,application and deepening of decimal sense.At last,through the examination of the present situation of the training strategy of the sense of decimal number in the later period,and the comparison of the former situation and the later situation by SPSS and Excel,it is found that the sense of decimal number of the students in the fourth,fifth and sixth grade experimental classes has been significantly improved,and is higher than the development level of the sense of decimal number of the students in the control class,in order to prove the effectiveness of the training strategy of the sense of decimal number.It is a long exploration process to study the culture strategy of decimal sense,but due to the researcher's own teaching experience,limited research ability and limited survey samples,this study is still insufficient.It is hoped that in the future educational practice will continue to study in depth and contribute to the teaching of mathematics in primary schools.