A Research On The Math Knowledge Deficiencies Of Primary School Students Based On Knowledge Graph

Knowledge deficiencies are the learning problem and difficulty of students,it is the embodiment of students’ lack of knowledge.Mathematics in primary school is the basic stage of mathematics learning.Many primary school students have more or less knowledge deficiencies in mathematics learning,and it is difficult to find out in time.At present,with the increasing application of knowledge graph in the field of education,it has become a trend to use knowledge graph to visualize the research on an educational topic.By combining knowledge graph visualization to analyze the knowledge system of mathematics in the fourth grade and the knowledge deficiencies of students,learning problems can be easily found and teaching can be more targeted.Therefore,this research takes the fourth grade of primary school as an example to conduct a research on the deficiencies of mathematical knowledge of primary school students based on knowledge graph.In the resarch of analyzing the knowledge deficiencies of students with the help of knowledge graph.Firstly the knowledge points are divided according to the teaching reference and auxiliary materials of the fourth-grade mathematics textbooks,and the knowledge graph of the fourth-grade mathematics is constructed;Secondly,through the test results,the degree of students’ mastery of knowledge points and the formation of knowledge deficiencies of unmastered knowledge points were obtained.Combining with the knowledge graph of the fourth grade,the knowledge graph of students was obtained;Thirdly,according to the distribution characteristics of the unmastered knowledge points and the evaluation results of students of different ages,it indicates that students have knowledge deficiencies in mathematics learning and there are structural deficiencies in the knowledge graph of students;At last,the data processing technology is applied to analyze the mutual influence and correlation among the knowledge points that are not mastered by students.The knowledge deficiencies are visualized,the results are elaborated,and the learning and teaching suggestions are given.This research combines probability calculation,correlation analysis,similarity measurement,correlation analysis and other technical means to deeply mine the obtained data.Finally,a conclusion is drawn that there are structural knowledge deficiencies in the current knowledge graph of students: First,there is mutual influence and dependence between the upper and lower volumes of knowledge points in the process of learning and mastering;Second,knowledge points belonging to the same parent knowledge point have mutual influence;Third,although some knowledge points do not belong to the same parent knowledge points,nor do they seem to have a direct relationship,they still have mutual influence in learning.Therefore,in the process of learning and review,students should not be limited to the mastery of local knowledge,but focus on the construction of the overall knowledge structure.Teachers should break the traditional teaching mode of chapter learning and pay attention to the structure and integrity of knowledge.At the same time,teachers should also pay attention to students’ learning development potential,to help students better develop their potential and teach students in accordance with their aptitude.During the implementation of the research,two formal interviews were conducted with three experts and teachers to find out whether the research results of knowledge points division and knowledge deficiencies could be helpful to students and teachers,which was unanimously affirmed by the three experts and teachers,and significant research results were obtained in practice.After completing the research,this paper summarizes and looks forward to the research results,hoping that more and more researchers will join in the research of primary school education,so as to help students timely find learning problems and teachers solve practical teaching problems.