A Study On Screening And Intervention For Children With Poor Number Sense In Grades 1-3 Of Primary School

"Nruuber sense" is at the top of the ten core words in "Mathematics Curriculum Standards",and "building number sense" is also listed as the primary goal in the field of mathematics thinking.It can be seen that number sense has become an important content of mathematics courses in compulsory education stage.If children cannot understand the relationship between the number combination,it will not be conducive to the acquisition and extraction of arithmetic facts,and children with poor number sense will also have unhealthy performance in learning psychology.In order to better help children with poor number sense and study the law of the development of children's number sense,this paper revised the Test of Children's Number Sense Development,and formed a formal test after the analysis and modification after the initial test.The test developed six elements from number sense:the meaning of number,the representation of number,the relationship between number,the operation of number,the estimation of number,and the problem solving of number.Through the statistical analysis of the test results,we obtained the following results:(1)In the sense of number,there are significant differences among grades;(2)In terms of number representation and number relationship,there is no significant difference between Grade 1 and Grade 2,but there is significant difference between Grade 1 and Grade 2.(3)In terms of number estimation,there is no significant difference between Grade 1 and Grade 2,while there is significant difference between Grade 1 and Grade 3;(4)In terms of number problem solving,there is a significant difference between Grade I and Grade 2,but no significant difference between Grade 1 and Grade 2.(5)There was no significant difference in the calculation of numbers among all grades.Research Conclusions:On the whole,the development level of students' number sense is gradually improved with the increase of grade(age).However,there are differences in the development of various components of number sense among Grade 1-3 students.Through the dynamic intervention of group course tutoring,the number sense level of students in other dimensions of number sense elements has been significantly improved except the relationship dimension of number.