Research And Practice Of Primary Battery Teaching Design Based On PBL Theory

The learning content of the primary battery is the basis for students to build an electrochemical knowledge network.It plays a pivotal role in high school chemistry learning and is closely related to life.But because this knowledge is more abstract,students will be challenged in the learning process.How to help students better master this part of the original battery,how to develop the core literacy of students’ chemistry in the study of primary batteries,based on these two points to carry out this research.Firstly,through the literature analysis method,the existing research contents of the original battery are analyzed and summarized.Through the research on the literature and the investigation of the current situation,the research ideas and research methods are pointed out for the whole paper.Before the teaching design,the textbook content and the curriculum standard were analyzed from the perspective of core literacy to grasp the knowledge content.Through the interpretation of the core literacy of the chemistry subject,the PBL theory was used as the theoretical support of the teaching design;the interview method and the questionnaire were used respectively.The survey method provides a comprehensive understanding of the teaching status of teachers and students’ interest in learning,so as to solve practical problems in the process of teaching design.With the aim of developing students’ core literacy of chemistry,the design and production of teaching software is convenient for students to understand the microprinciples of galvanic cells.PBL theory is used for teaching design,and two parallel classes are selected as control classes and experimental classes after design.Conducting teaching practice,interviewing students and testing the knowledge ability after practice,through interviews and using SPSS 20.0 to analyze the test results of students,this study has achieved certain results.It is divided into five chapters,the main contents are as follows:The first chapter is the introduction,expounds the research background,and makes a literature review on the existing research of galvanic cells,and determines the research ideas and research methods.The second chapter analyzes the knowledge content of the primary battery from the perspective of the content of the textbook,the curriculum standards and the outline of the college entrance examination from the perspective of the core literacy of the chemistry discipline.The third chapter is the research focus.Through the interpretation of the course standard,PBL theory was chosen as the theoretical support of instructional design;in order to better understand the situation of teachers and students,interview teachers,understand the teaching methods of teachers and students’ learning difficulties;conduct questionnaire surveys for students.Understand students’ interest in learning,study habits,etc.To pave the way for instructional design.On the basis of the above,based on the PBL theory,the development of "skill-based" software and instructional design were carried out for the "single-liquid primary battery" and "two-liquid primary battery".The fourth chapter is the practice of this teaching design,through the student interviews and knowledge level test to test the teaching design.The fifth chapter summarizes and looks forward to the reflection of this teaching research based on teaching practice,and finds the lack of research.Through research,it is found that teaching based on PBL theory can improve students’ interest in learning,fully mobilize students’ enthusiasm for learning,cultivate students’ logical thinking and evidence reasoning ability,and improve their knowledge level.