The Current Situation And Problem-solving Strategies Of The Number Sense Training Of Fifth Grade Primary School Students

Along with the information technology process going,numbers play an irreplaceable role in nowdays' life working.Therefore,learning necessary numbers'knowledge is not only to enhance people's thinking and cognition level,but also improving the efficiency of working and the quality of life."Numbers' sense" is listed as one of the ten core concepts in the compulsory education curriculum standard(experimental version)" for the first time,and its explicit behavior is refined based on the concept connotation of "numbers' sense".In the elementary school mathematics compulsory education mathematics curriculum standard(2011 version)"(hereinafter referred to as" the class standard(2011 edition)'as concise,the explanation of the concrete in this paper,the mathematics curriculum standard,on the basis of overall goal,the numbers' sense to cultivate the students to carry out in numbers and algebra,graphics and geometry,statistics and probability,the training objectives of comprehensive and practical four areas,thus it is simple to see that numbers' sense has become the key of the compulsory education stage to cultivate students mathematical ability.According to the mathematics curriculum standard proposed ten core accomplishment and the demands of curriculum reform,the selected numbers ' sense as the research direction,through the investigation to determine the content in the research of the elementary school students during the course of the study for the fifth grade students feeling,reference state issued the curriculum(2011 edition)and combined with relevant scholars in the field of the meaning of number sense dimension research will divide one,the representation of a numbers,the number of relations,the number of operations,the number of estimation,the number of problem solving,well as the main line.According to the six dimensions,the test questions which can test the development of numbers' sense of primary school students are compiled.In order to ensure that the test data are scientific and universal,five year students from three different schools were randomly selected as the research object.Based on the survey data of the development status of number sense of fifth grade students in primary school,it is found that there are a series of problems in the cultivation of number sense of fifth grade students.Lack of cognitive and conversion ability of number representation;Lack of the ability to compare the size of Numbers in specific situations,the grasp of the benchmark is insufficient;Lack of understanding of the meaning and rationality of number operation;Fuzzy estimation consciousness and weak estimation ability;Lack of ability to use Numbers to solve practical problems,too set problem solving mode.According to the analysis of the problem,it is found that the structure and content of mathematics course are single,too much emphasis on knowledge acquisition,too much emphasis on operation,and the connection between the course content and life situation needs to be strengthened Teachers' teaching methods,teaching concepts and teaching contents all have an impact on students' sense of Numbers.Students' original knowledge level,knowledge transfer ability and thinking mode will also have an impact on the development of quantitative literacyBased on spss20,this paper analyzes the data of students' answers and summarizes the problems in the process of students' sense of number development with interview method:in terms of the structure of mathematics curriculum,it is necessary to clearly estimate the value and improve the level of estimation,strengthen the relationship between mathematics and life situation;In the aspect of teacher teaching model,we should pay attention to the accumulation of reference quantity.In students' mathematical thinking,they attach importance to the meaning of operation and advocate the diversification of algorithms.In terms of students themselves,they should strengthen the meaning of logarithm,deepen their understanding of the representation of Numbers,and improve their representation ability of Numbers.