Teaching Exploration And Practice Based On Partial Chemistry Experiment Improvement In Senior High School

Since the founding of the People ’s Republic of China,education reform has been in the ascendant,and the new college entrance examination reform has strengthened the examination of students ’ comprehensive ability.Experiment is one of the characteristics of chemistry,and it is also an important means of high school chemistry teaching.It has unique advantages in cultivating students ’ ability.The " General High School Chemistry Curriculum Standards(2017 Edition 2020 Revision)" advocates a variety of activities based on chemical experiments,pays attention to the cultivation of students ’ scientific inquiry ability,and promotes the transformation of students ’ learning methods.However,some of the experiments in the textbook have the disadvantages of inconspicuous phenomena and time-consuming.Therefore,improving the experiments that are insufficient in the teaching materials can enhance students’ interest in learning,give full play to the experimental teaching function,and cultivate students’ core literacy.Through literature research,the development and current situation of chemical experiment teaching and experiment improvement are understood,and the concept and theoretical basis of chemical experiment teaching improvement are sorted out and integrated.Through questionnaires and interviews,we can understand the teaching and experimental improvement of high school chemistry experiment in a certain area of Zhangzhou City,and determine the direction of teaching research.According to the improvement process of high school chemistry experiment,’ endothermic experiment ’,’ ammonia property experiment ’ and ’ ferrous hydroxide experiment ’ were selected.From the aspects of experimental device,experimental conditions and experimental drugs,the digitization,greening and miniaturization of chemical experiment were realized,and the teaching scheme was designed.Taking two classes of a middle school in a certain area of Zhangzhou as the research object,the experiment teaching practice of high school chemistry improvement was carried out.The feasibility of the research was determined by the analysis and comparison of the pre-test and post-test data and the results of the questionnaire interview,and the teaching results were formed.Through research and practice,it is found that compared with conventional textbook experiments,experimental improvement and teaching can stimulate students ’ enthusiasm for participating in experiments and improve students ’ inquiry experiment ability.At the same time,it can also broaden teachers ’ experimental teaching ideas,improve teaching skills and teaching quality,and promote teachers ’ professional development.The improvement of experimental teaching has achieved good results,which is an effective way to improve the quality of teaching,and provides reference and useful reference for the improvement and teaching of high school chemistry experiment.