A Practical Research On Fostering Students’ Interest In Learning Chemical Concepts

The "Chemistry Curriculum Standards for General High Schools（2017 Edition,2020Revision）" clearly put forward the basic concept of "paying attention to the development of’literacy-based’ teaching",advocate and carry out a variety of exploration activities based on chemical experiments to stimulate students’ interest in learning chemistry."Interest in learning has always been a topic of concern in the education sector.In recent years,In recent years,students’ learning competition has become more and more fierce,and the pressure of college entrance examination has become more and more intense,resulting in students’ lack of perceptual knowledge and emotional experience in learning,which is not conducive to the improvement of students’ innovative ability and practical ability.Chemistry concepts are an important part of middle school chemistry teaching and the cornerstone and starting point for students to learn chemistry.Therefore,it is very important to cultivate students’ interest in learning chemistry concepts.On the basis of literature analysis,a questionnaire survey was completed on the level of interest,main influencing factors and learning status of 368 students from 8 classes in the first grade of a middle school in Hanzhong City,and five senior chemistry teachers Face-to-face interviews on the current state of conceptual teaching.Based on the analysis of the research results,a typical case of "redox reaction" was designed,and 88 high school students from two classes of a middle school in Hanzhong City were selected for teaching practice.The test scores test the effect of teaching practice.The main research conclusions are as follows:First,students’ interest in learning chemistry（concepts）is mainly related to teachers（teaching methods,personality charm）and students themselves（basic chemistry performance,learning methods,value understanding of concepts,students’ needs）.Second,students with a good foundation and students with a weak foundation differ greatly in the expectations of teaching methods.Thrid,it is difficult for students to internalize chemical concepts through mechanical recitation and a large number of problem-solving learning methods.Fouth,the evaluation after the implementation of teaching practice shows that:（1）The quantitative average of students’ interest in chemistry（concept）learning in the experimental class was4.17 points higher than that in the control class;（2）The average score of the "redox reaction" content test of the experimental class was 3.7 points higher than that of the control class.It shows that the "redox reaction" teaching that meets students’ classroom expectations and emotional experience has a certain promoting effect on students’ interest in learning and chemistry performance.Based on the above theoretical analysis and practical research on the cultivation of interests and the teaching of chemical concepts,the design strategies of classroom teaching of chemical concepts（contextualization,specialization,construction,visualization,and life）are condensed,and 3 teaching strategies are put forward for the teaching of chemical concepts for front-line teachers.Suggestions:Choose the appropriate teaching mode according to the students’ chemistry grades,carefully design the teaching links and content,and enrich the students’ classroom experience;Be good at observing students and help them find suitable learning methods;From the three aspects of morality,knowledge and image,we can improve the personal charm of teachers.3 suggestions for students to learn chemistry concepts:Develop good study habits and summarize concepts in a timely manner;Use mind map or concept map to construct chemical concept knowledge system;Connect more with the reality of life and correctly understand the value of chemical concepts.