Research On The Teaching Strategy Of No Experiment New Course Of Chemistry In Junior High School Based On Improving Students' Key Competencies

In the ninth grade chemistry textbook of human education edition,there are two chapters in the new course without experiment: the mysteries of material composition and chemistry and life,the two lessons of how to write chemical equation correctly and simple calculation by using chemical equation,these contents cultivate students' ability to establish micro thoughts,use chemical terms correctly and solve practical problems with chemical knowledge.In the actual teaching,because of the heavy learning tasks of the students in the third stage of the junior high school,and there is no experiment in this part of the content,the classroom often lacks the motivation to attract students to learn.With the improvement of the difficulty of the content,the students feel hard to learn and lose interest and confidence in learning.Teachers' teaching development also reduces their sense of success due to the lack of cooperation from students.Teachers' teaching is limited and students' ability is not improved.Nowadays,the development of students' Key Competencies has been a very important topic in the education field.How to implement and cultivate students' Key Competencies in chemistry is an important topic that many chemistry teachers need to study.Guided by the Key Competencies of the subject,this paper studies the teaching strategy of no experiment new course in junior high school chemistry,which has certain guiding significance.First of all,this paper uses literature research method to define the core concepts and understand the research status of Key Competencies at home and abroad.Thetypical teaching cases are put forward and analyzed.By using the method of questionnaire and case interview,this paper analyzes the problems existing in the teaching of new chemistry course without experiment in junior middle school from the perspective of both teachers and students,the main problems are that the teaching plan and objectives are not clear,the traditional teaching method is single,so that students' learning method can not be optimized,lack of learning evaluation.Under the guidance of the Key Competencies of chemistry,the new teaching strategy of no experiment chemistry course in junior middle school is constructed.This paper discusses how to change the attitude of teachers and students and clarify the objectives of each stage in the new chemistry experiment free course teaching in junior middle school.Meanwhile,the new chemistry experiment free course teaching in junior middle school is divided into two stages: the formation of knowledge network and the promotion of special topics.It puts forward the teaching strategies of new chemistry experiment free course in junior middle school by stages and improves the way of evaluation.At present,there are few integrated and unified systematic researches on the new chemistry course without experiment in junior middle school.More researches are carried out on a single course as an example,emphasizing the teaching strategies and training methods of this course.More and more educators gradually pay attention to the Key Competencies of the subject,and intend to infiltrate into the teaching,but how to implement the specific practice is still in the exploration.Based on the research on the teaching strategy of no experiment new course in junior high school chemistry,the purpose of which is to improve the students' comprehensive ability is to penetrate the Key Competencies of chemistry.In the actual teaching,this paper guides teachers to teach new courses,carry out the cultivation and promotion of the Key Competencies of chemistry,and improve teachers' teaching ability and students' learning ability.