Training And Evaluation Of Junior High School Students' Operational Ability In Chemical Experiments

It has been nearly 17 years since the start of the new curriculum reform,however,as a means of "improving students' quality",experiment has not attracted enough attention from chemistry teachers in the chemistry teaching of junior middle schools in most regions at present,and students' experimental ability has not reached the target requirements of the new curriculum standard.The purpose of this paper is to through the survey and the interview method to understand the current situation of chemical experiment in junior high school students operation ability and evaluation way,aiming at the problems of its put forward reasonable strategy,its practice in chemistry teaching,with the result of practice were discussed,looking forward to the improvement of students' ability to operate the chemical experiment has certain help and reference.The study is divided into eight chapters:The first chapter is the introduction,which mainly introduces the research background of the paper,the purpose and significance of the training and evaluation of the basic operational ability of the chemical experiment of junior middle school students,and the methods used in the study.The second chapter is literature review,which is mainly about the theoretical research on the basic operational ability of the chemical experiment of junior high school students.By querying and reading relevant literature and materials,the definition of relevant concepts,current research status at home and abroad and relevant theories of teaching strategies are sorted out.The third chapter is to analyze the experimental operation skills of Dandong region by referring to the materials of the 2017 senior middle school examination of Dandong city,to clarify the basic operational ability of each student,to evaluate the status quo of the chemical experiment operation ability of junior middle school students,and to identify problems.The fourth chapter,aiming at the problems of the students' experimental operation,proposes effective strategies for the training of junior high school students' experimental operation ability.The fifth chapter is to investigate the status quo of additional tests in middle school chemistry tests in Dandong area through questionnaire survey and teacher interview,etc.,and to evaluate this way of evaluating students' experimental ability.The chapter part is to put forward Suggestions on the problems exposed in the test of chemical experiment operation in middle school entrance examination in dandong region,and put forward relevant Suggestions from three different angles:teaching and research institutions,grassroots schools and chemistry teachers.The seventh chapter is about the above strategies.After a year of teaching practice,the author compared and analyzed the students' scores of the school and the classes taught by the author in the additional test of chemistry experiment in 2017 and 2018.It was found that the students' scores were significantly improved,and a conclusion was drawn that the relevant strategies were somewhat effective.The eighth chapter is the conclusion,summarizing the status quo of the chemical experimental operation ability and evaluation method of junior middle school students in Dandong region and the strategies to improve the experimental operation ability of students,and also pointing out some deficiencies of this study.