A Case Study On The Teaching Of Chemical Concepts To Promote The Cognitive Development Of Junior High School Students

Concept teaching is an important part of junior middle school chemistry teaching.In view of the present situation of excessive emphasis on the teaching of knowledge imparting in the traditional junior middle school chemistry concept teaching,the author believes that,under the background of the new curriculum reform,junior middle school chemistry teachers should innovate the method of concept teaching and promote the comprehensive improvement of the thinking ability and recognition ability of junior high school students through the development of experimental teaching cases,so as to realize junior high school chemistry.We should learn three dimensional teaching objectives of knowledge and skills,process and method,emotional attitude and values,so as to achieve good teaching effect in junior middle school chemistry.This paper mainly adopts the methods of literature research,experimental teaching case analysis,interview and questionnaire.Through the development of experimental teaching cases,we study the situation of experimental teaching cases to promote the development of students' cognitive ability.The result of teaching research shows that in the course of Chemistry Concept Teaching in junior middle school,the development of experimental teaching cases has a positive effect on promoting the development of students' cognitive ability,which makes students more flexible in understanding and understanding related knowledge,and can change the traditional teaching mode of concept teaching and change the death of students.The chemistry teaching model of hard back.Combined with the above four teaching cases: combustion conditions,solubility,solute mass fraction,complex decomposition reaction,I found that students in the course of inquiry teaching,interest is still relatively strong.Especially in the process of group discussion,students are more enthusiastic.Many students can freely express their thoughts and opinions.Such a way has a good effect on improving students' cognitive ability and promoting their thinking development.In the future teaching work,I will combine the actual situation of teaching,more case teaching,in order to promote the development of students' cognition and the improvement of thinking ability,and promote the improvement of students' practical ability.