The Practice Research Of Chemistry Preview Instruction In Junior High School

Preview instruction is a new teaching mode to adapt to the needs of curriculum reform.It advocates the importance of self-study,which mainly aims to cultivate students' independent learning ability and self-study habit through preview.Preview is an important part of the teaching process and plays an irreplaceable role in the whole teaching process.In order to test the timeliness of class preview and its significance and value in the teaching process,this paper summarizes the elaboration of preview guidance by different scholars and education theory through consulting materials,journal articles and relevant papers in the past 15 years.On the basis of previous studies,according to the compulsory curriculum standards of the human edition and the new target human edition ninth grade textbook design preview guidance,in the form of loose leaf distributed to students for practice research.This thesis is divided into five parts.The first part points out the meaning and purpose of the study of preview instruction and the specific methods and ideas of the study.The second part introduces the concept definition of preview instruction and related theoretical review.The third part expounds and analyzes the present situation of junior middle school students1 preparation of chemistry subject.The fourth part introduces the design case of preview instruction,the concrete practice process and the result analysis.The last chapter summarizes the achievements of practice and what needs to be improved.Based on the theory of constructivism,the theory of the zone of recent development and the theory of humanism,this study expounds the theoretical value of the preview guidance and designs the specific preview guidance leaflet based on education theory.And according to the different lesson type,design has the target preview instruction plan.Through specific practical research,the following conclusions are drawn:1)The preview guidance optimizes the classroom structure and teaching atmosphere of chemistry teaching.(2)Preview guidance plays a certain role in cultivating students' independent learning habits and cultivating students' independent thinking.(3)Preview instruction effectively improves students' interest in learning chemistry.The preview instruction enriches the teachers' teaching methods,expands the teaching mode of chemistry teachers,and extends the ideas of teachers' teaching.The practice research of preview instruction proves the importance of preview and the positive effect of preview instruction on teaching and students' thinking development.However,due to the short practice cycle and limited sample size,this study also has some deficiencies.The research on the teaching mode of preview guidance needs the improvement and exploration of the front-line teachers.