Research On The Current Situation Of Grade 7 Students ——Takes Three Junior High Schools In Hefei As An Example

Entering junior high school,students have to go through the expansion of the number department and the transition from arithmetic to algebra.This part is not only related to the higher level of future learning,and plays a role in connecting the preceding and the following,but also the "cornerstone" of students’ mathematics learning.The purpose of this study is to divide the dimension of number sense based on the research of number sense at home and abroad,compile the appropriate test paper of junior high school students,and investigate and analyze the current situation of seventh grade students’ number sense cultivation in three seventh grade students of different levels in Hefei.Through students’ interview and teacher survey,we can further understand students’ thinking characteristics and teache thinking on cultivating number sense from the perspective of core quality.In this paper,the core literacy and number sense of mathematics through the method of literature research,explains the research background and research purpose and significance,expounds the relevant theories,and defines the relevant concepts.In order to further understand the current situation of the seventh grade students,the student interview,the student test paper and the teacher interview outline are designed.Through the interview between teachers and students and the test paper survey,the six dimensions and their levels are obtained,among which the students perform the sixth dimension: using the calculation strategy and judging the rationality of the results by calculation.The results show that the sensory performance of junior high school students is above average;there is no significant difference between male and female students.According to the results of research,the paper raises the relevant suggestions of number sense cultivation: teachers should improve the sense of number and symbol to develop students’ core literacy;combine mathematics teaching and life situation;cultivate the idea of number and shape in teaching;further develop the sense of number in comparison and estimation;focus on the understanding of operational meaning and encourage the diversification of algorithms.According to the teaching suggestions of relevant educational theory,the teaching design of number axis,rational.