Review Teaching Research To Promote Undertanding Of Core Ideas In Junior Chemistry

Junior middle school chemistry is the enlightening course of chemistry education,in which the learning of core ideas is the key point of chemistry learning.So,the teaching of core ideas should also be the key point of teaching.However,recent studies at home and abroad show that most teachers pay insufficient attention to promoting the understanding of core ideas,ignoring the importance of recitation for students to further understand ideas in the teaching process,which leads to the fact that students’ learning of chemistry tends to stay at the surface level of memorization,affecting their interest in chemistry and ability to solve chemistry problems.Through literature review of core ideas and relating teaching research,the research direction of reviewing teaching based on triple characterization and promoting the understanding of core ideas in junior middle school chemistry was finally determined.Based on the analysis of the teaching contents of the first eight units in the ninth grade chemistry textbook published by the people’s education press,the teaching objectives and process are designed according to the triple representational and randomly enter the teaching mode,and the teaching practice is carried out.Finally,some teaching ideas and suggestions are provided for the review teaching of junior middle school chemistry concepts.Through the analysis of the classroom record and the comparison of the survey results of exercise tests before and after,the research conclusion is drawn.It is found that teaching with triple representation as the clue and core idea of chemistry as the center can make scattered knowledge orderly and systematic.It can not only promote students’ understanding and application of concepts,but also help students form a correct way of thinking in learning chemistry,so as to reduce mechanical memory and reduce students’ learning burden.The use of mind map to present teaching content can help improve the efficiency of classroom review.After the analysis and reflection of the teaching process,it is found that there are still some problems in this study,such as the single object of study,the lack of vitality and interest in class,and the conclusion of the improvement of students’ performance is one-sided,which need to be further improved and solved.