Teaching Research On Review Of High School Chemistry Concept And Principle Based On Ideas Construction

The purpose of the high school chemistry curriculum reform is to improve students' cientific literacy,emphasizing that students should form the chemical basic concepts on the basis of understanding the basic chemical concepts and principles.But in the review teaching of the senior three,teachers all ways pay more attention to the review of knowledge and try to consolidate the students' knowledge through the topic of sea tactics,which is contrary to the goal of curriculum reform.Based on the requirement of chemical concept,this paper analyzes and studies the basic concepts and principles of high school chemistry,and the topic of "Redox reaction" was reviewed to develop the teaching case.This paper is divided into five parts:The first part,the introduction.Introduce the background and significance of this research,summarize the relevant research results at home and abroad,introduce the research methods of this topic,and extract the innovation points.The second part,the theoretical basis of the study.Expounds the main points of the recent development area theory and constructivism theory,and the suggestions on the role of each theory in this teaching design case.The third part,Analysis of redox reaction based on high school chemistry curriculum standard and chemistry concept.Select the content of Sujiaoban's Redox reaction for analysis.Firstly,The content of the textbook and the exercises after class pay attention to the foundation and application,which can make the students have a certain understanding and understanding of the concept and law of the redox reaction,and meet the requirements of the curriculum standard.Review teaching suggestions based on the conclusion:On the basis of understanding the academic situation,reorganize and appropriately expand the learning content,change the “reproducing knowledge” into “application knowledge”,enhance the structured level of knowledge,and select comprehensive and situational exercises to provide opportunities for students to solve chemical problems.Secondly,Based on the analysis of the teaching materials based on the concept of chemistry,it is concluded that by studying the relevant contents of the teaching materials,students can initially build up the basic concepts of chemistry,such as transformation view,particle view,conservation view and so on.Review teaching suggestions based on the conclusion: Analyze the development of students 'chemistry concept;Set up the task situation to explicit and deepen the concept in application;Design diversified learning tasks withsubject characteristics;Adopt multi-form and multi-angle evaluation methods to support students to reflect and improve their ideas.The fourth part,Development and design of teaching case.According to the chemistry concept,the curriculum standard of the high school chemistry and the requirements of theory foundation,develop a teaching design case of "Redox reaction",and put forward the corresponding teaching strategies for the implementation of the case: Taking the curriculum as the program,integrate teaching materials and play the leading role of chemical concepts;Create a teaching situation and design a high quality problem group based on knowledge application;Around the problem group,design advanced problem solving task,explicit understanding ideas,and realize the transformation of learning style;Pay attention to giving full play to the function of diagnosis and evaluation of teaching activities,and urge students to reflect and reconstruct their ideas.The fifth part,Conclusion and prospect.Summarize the research conclusions and suggestions of each part.Analyze objectively the shortcomings of existing researches and provide guidance for follow-up research.