Construction Of Junior High School Data Analysis Teaching Evaluation Framework

The Compulsory Education Mathematics Curriculum Standard emphasizes the cultivation of student data analysis concepts,and regards “data analysis concepts” as one of its core concepts.Research shows that more and more mathematics teachers have realized the importance of cultivating student data analysis concepts.How to construct a teaching evaluation framework for data analysis has become a research topic that needs to be solved urgently in curriculum reform practice.(1)Defining the connotation and characteristics of data analysis Data analysis is a concept of consciousness that can only be realized through personal experience.This concept is gradually formed during the student's participation in statistical activities.The specific manifestation is that the cognition data contains certain information,and can use the appropriate data analysis method according to the background of the problem to achieve the purpose of solving the problem.Finally,it analyzes the randomness of the entire process experience in the data analysis process.Its characteristics mainly include: situational,flexibility,randomness,and process.(2)The method of data analysis teaching evaluation was designed,including statistical classroom observation method,data analysis concept teacher questionnaire method,student data analysis questionnaire method and student data analysis idea test method.(3)Focusing on the connotation and characteristics of data analysis teaching,combining mathematics classroom teaching evaluation and front-line teachers' views and viewpoints on statistical teaching,an evaluation framework for data analysis concept consisting of 5 first-level indicators and 18 specific indicators was constructed by means of scoring and ranking method.The Delphi method was used to weight each evaluation indicator,and quantitative evaluation and qualitative evaluation were used.The combined approach forms a complete evaluation framework.(4)In Xi'an,a junior high school appraisal table was used to analyze the actual data in the classroom,combined with the teacher's classroom observation table and the students' post-classroom testing to test the frame's rationality,and the statistical analysis was used to further test the rationality of the framework.