Practical Research On Unit Teaching Based On Core Competencies In Chemistry

In order to further promote education,the Ministry of Education promulgated the new Chemistry Curriculum Standards for Senior High Schools(2017 edition).It is clearly pointed out in the new curriculum standard that "the development of the core literacy of chemistry discipline should be the main purpose,the importance of carrying out the quality-based teaching,the importance of the structured design of teaching content".However,in high school chemistry teaching,many teachers directly indoctrinate students with fragmented knowledge,which is not conducive to the overall construction of students’ knowledge.As time goes by,students’ enthusiasm for learning is eroded,and they gradually lose their interest and confidence in chemistry,resulting in poor learning effect.Compared with the traditional classroom teaching of "miscellaneous,broken and disorderly",the unit teaching that pays attention to the structured content of the course is more suitable for the current educational reform.In view of this,the author carries out the unit teaching practice research based on the core literacy of chemistry.The main research work is as follows:(1)By referring to a large number of literature materials,we understand the current research status of core literacy theory and unit teaching at home and abroad,define the concepts of core literacy and unit teaching of chemistry,propose the theoretical basis of this study,and provide theoretical support for unit teaching based on core literacy of chemistry.(2)In order to understand the current situation of high school students’ chemistry learning and the current situation of chemistry teachers’ unit teaching,questionnaires were carried out for students and teachers respectively.As can be seen from the survey results,high school students have been bored with the current teaching mode to some extent,and have little interest in chemistry learning.They prefer to have a relaxed and active chemistry classroom that combines various forms.Most chemistry teachers have fully realized that unit teaching is of great practical significance to both teachers’ teaching and students’ learning.However,most teachers have not fully understood the theory and method of unit teaching,so they seldom carry out unit teaching in the actual teaching process,so they are eager to get more theoretical guidance and method help.(3)According to the research status and the results of the questionnaire survey,the unit teaching idea based on the core literacy of chemistry subject is proposed based on the theoretical basis.Based on this,on the basis of the new curriculum standards and the new textbooks of the human education edition,"Iron and its compounds" is selected as the teaching unit to carry out the unit teaching design,and it is taken as the teaching case to carry out the unit teaching practice in the high school where the author works.Two ordinary classes were selected to carry out unit teaching and traditional class teaching respectively,and the teaching effect of unit teaching design was analyzed through the performance of students’ activities in class,unit test results and student interviews.The overall comparison shows that the students in the experimental class have better classroom participation and learning enthusiasm,and the students’ performance has been significantly improved compared with the control class.The teaching practice results show that unit teaching based on core literacy has obvious effects on the construction of students’ knowledge structure,the formation of cognitive ideas,and the improvement of learning interest and chemistry core literacy.Based on theoretical and practical research,the element compound unit teaching strategy proposed in this paper based on core literacy of chemistry discipline has important practical significance for promoting students to master knowledge of element compound,promoting the smooth development of teaching activities,improving classroom efficiency,cultivating basic concept of discipline and developing core literacy of discipline.At the same time,it also has certain reference significance for front-line teachers to carry out unit teaching.