Research On The Application Of Performance Evaluation In The Large Unit Teaching Of Chemistry In Middle School

With the revision of chemistry curriculum standards and textbooks,the concept of large unit teaching has become a hot topic in chemistry teaching in recent years.With the increasing importance of curriculum evaluation,"evaluation",which used to be a marginal concept,has gradually been paid attention to by people.With the development of more and more evaluation methods,performance evaluation has been gradually applied to middle school classroom teaching and evaluation because of its unique advantages of focusing on process.It is still full of challenges to construct a practical,feasible and highly popularizing performance evaluation mode in the large unit teaching of chemistry in middle school.This study investigated and analyzed the current situation of performance evaluation in middle school chemistry classroom,and explored ways to solve the problem,so as to promote the wide application of performance evaluation in middle school chemistry classroom teaching.First of all,this paper takes common middle school chemistry teachers in H city as the survey object,takes the actual situation of these middle schools as the benchmark,and invites middle school chemistry teachers to fill in the questionnaire on the Status quo of performance evaluation in middle school chemistry classroom teaching,supplemented by interviews,to understand the status quo of application of performance evaluation in middle school chemistry classroom teaching.The research results are analyzed and discussed.The purpose of this study is to understand the cognition of high school chemistry teachers and students on chemistry large unit teaching and performance evaluation and to further explore the implementation of performance evaluation in chemistry large unit teaching.Through statistical analysis of the data,we can provide practical basis for the design and formulation of performance evaluation content in the large unit teaching of chemistry in middle school.Taking the teaching of "The Application of Chemistry in Life--Disinfectant" as an example,the knowledge of "Chlorine and its Compounds",Chapter 2,Section 2,and "Ethanol",Chapter 7,Section 3,of Compulsory Chemistry 1,Chapter 2,is integrated.