Action Study Of Chemistry Teaching With Triple Representation

Teachers' professional development is a core issue that is concerned by many educational researchers,And teachers' self-professional development is the key to the professional development of teachers.Many research results show that teachers' self-professional development needs not only the guidance of educational theory,but also effective and feasible way.In view of the above,based on the guidance of the theory of chemical triple representation,this paper carrys out action research that is aimed at teacher's teaching design and teaching practice,to open up a new effective way for chemical teachers' self-professional development.Chemical triple representation theory is one of the most important theories of chemical science,which can effectively provide a new direction for chemistry teachers' teaching and guide their teaching work.Action research is an effective way which can promote teachers to focus on themselves initiatively,and promote teachers' self-professional development.This article attempts to sovel the following two problem:1?The triple representation theory as the teaching value orientation,how is it reflected in the design and practice of specific chemistry curriculum.2?How to promote self-professional development in the process of action research of chemistry teachers whis the perspective of triple representation theory.In view of the above two core research questions,this article mainly adopts the literature research method,the interview investigation method and the action research method.Using the literature research to sort out the relevant research of the triple representation theory and form the core understanding;then using action research method to carry out action research on the whole process of research object in teaching design and teaching practice.The full text is divided into the following five parts:The first part is preface.This part mainly describes the research problems and the reasons as well as the research methods,purpose,significance and the reliability and validity of this study and so on.The second part is the literature research and theoretical basis.This part is aimed at the foreign research and domestic research on the triple representation theory to classify and detaile,expounds the problems,and finally forms the theoretical basis of this research.The third part is a case study of action research of chemistry teaching design on chemical triple representation-Taking ?metal crystals? as an example.This part expounds the reason why it is aimed the metal crystal to carry out action research of teaching design with the triple representation,and the problems encountered,the idea of solving the problem,and presents specific teaching design process of the "metal crystal" and so on.The fourth part is a case study of action research of chemistry teaching practice – Taking precipitation titration as an example.This part elaborates the concrete contents of the teaching practice of "precipitation titration" which is aimed at cultivating students' triple representation thinking,and analyzes the teaching effect through the completion of after-school exercises and the interviews with students,and presents the reflection and suggestion on the teaching practice.The fifth part is the conclusion.This part expounds the conclusions and the shortcomings of the study,and has a prospect to the study of future.