The Application Of Expressive Assessment In Junior High School Mathematics Activities

?The mathematics curriculum standard of compulsory education?points out that in the new teaching reform,we should change the traditional evaluation method and adopt a more scientific and comprehensive evaluation method.Performance evaluation can evaluate students' emotional attitude,cooperation ability and innovation ability in mathematics activities,and make a more comprehensive evaluation of students,so as to make up for the shortcomings of traditional tests.However,at present,due to the one-sided understanding of the connotation of mathematical activities,the lack of evaluation research and practice of mathematical activities,and the lack of relevant training of teachers,the implementation of performance evaluation in mathematical activities is in a dilemma,so the author has carried out research on these problems.Firstly,this paper combs the literature about performance evaluation at home and abroad,summarizes the definition,purpose,steps and significance of performance evaluation,and compares the research on performance evaluation at home and abroad,which lays the foundation for the follow-up research;secondly,through the questionnaire,the understanding degree and significance of performance evaluation of teachers and students in Junior Middle School of Xining city are understood Implementation;Thirdly,designe a complete set of mathematical activities in the application of performance evaluation program;Finally,apply to the program and study hou to apply perfoemance evaluation to mathematical activities combing with specific cases.Based on the above research and practice,this paper mainly draws the following conclusions: at this stage,most teachers still have a weak understanding of performance evaluation;both teachers and students believe that performance evaluation is a better evaluation method,but there is no systematic operation method in the specific implementation;the procedure of performance evaluation in mathematical activities should follow is to grasp the curriculum standards,Analyze the teaching materials and learning sentiment and Formulate evaluation objectives,design evaluation tasks and scoring rules;give feedback of evaluation results;through one semester's practice,it shows that teachers can pay attention to students' learning process with the help of performance evaluation in mathematics activities;performance evaluation highten students' interest in mathematics activities,enhancesstudents' confidence in learning mathematics and improves their ability of exploration and innovation.