The Application Of Case-Based Teaching In The Review Course Of Chemistry Theory

With the development of science and technology,our country will continue to promote the reform of the middle school curriculum to develop the students who are innovative.The "all-round development" is proposed in the overall framework and basic connotation of the core qualities of Chinese students in 2016.The high school chemistry curriculum standards describe five specific elements of the core disciplines of chemistry subjects,emphasizing students' innovative spirit and practice ability,focusing on the process of knowledge acquisition,focusing on the improvement of students' ability,and advocating "using typical cases to make students understand the value of subject knowledge in production and life",the case teaching method can be well embodied.Case-based teaching is widely used in medicine,business studies,and humanities in basic education.There are few applied studies about the review classes of basic education.Chemical theory knowledge is an important part of chemistry knowledge and is the main line of chemistry textbooks.Review is an important process for students to reconstruct knowledge.In the middle schools it is an urgent problem how to improve the efficiency of the review of chemical theory knowledge in chemistry teaching.Through research to further improve the application strategy of the case-based teaching in the refresher chemistry theory knowledge review class,it is helpful for the new teacher to control the chemistry review class in the senior year and select effective strategies and methods to improve the review efficiency and improve the students' knowledge application ability.Through the literature method,questionnaire survey method,combined with previous research on the application of the case-based teaching.This article investigate the use of the case-based teaching currently in the review of the theory of high chemistry theory class from teachers and students,to understand the teaching process of teachers and the process of student learning.Find that students have high motivation but poor self-control,and they are used to memorize scattered knowledge points mechanically but do not construct knowledge systems autonomously,lack of initiative in the classroom.Lacking quality cases and it is difficult to write a new teaching case.In response to these issues,the following strategies are proposed:(1)Teachers should strengthen the study of theoretical knowledge,understand the students' learning style,select high-quality cases flexibly to stimulate students' interest in review classes,and guide students to learn to study autonomously;(2)With subjects the cultivation of literacy is a goal,to organize the implementation of case teaching carefully,allocates time reasonably,guides students to participate in discussions actively,and gives students enthusiasm promptly;(3)Combines various teaching methods to improve the efficiency of the chemistry review class.(4)Improve the network sharing teaching case library of middle school chemistry subject.In the end of the article,take "the redox reaction review class" as an example to prepare the teaching design based on the optimization strategy,with a view to providing reference for the teaching of high school teachers.