Research On The Design And Practice Of Large Unit Teaching In High School Physics By Using Knowledge Graph

In the era of core literacy,the traditional teaching design based on "lesson time" and "knowledge points" can hardly match the core literacy objectives.teaching reform is imminent.Large-unit teaching can link real situations and effectively integrate subject knowledge,which is seen as a key path for core literacy implementation.In recent years,knowledge graph is an emerging learning tool,which can visualize the framework of knowledge points and the connections between knowledge.By analyzing related literature,it is found that when knowledge graph is applied to subject teaching,knowledge graph is consistent with the internal logic and external goals of large unit teaching.Therefore,the author tries to combine them and proposes the use of knowledge graph for large unit teaching of high school physics in order to provide new ideas for educational reform.This research focuses on the following three questions:(1)What are the advantages of combining knowledge graph and large-unit teaching?(2)How to use the knowledge graph to carry out the teaching of large units in high school physics?(3)Does the use of knowledge graph to carry out the teaching of large units in high school physics promote students’ physics performance and physical thinking ability?The research is divided into three parts with a total of six chapters.The first part is theoretical research,including the first two chapters of the dissertation.Chapter 1 is the introduction,mainly introduces the research background and clarifies the research value.The literature method is used to sort out the research status of knowledge graph and largeunit teaching,which provides a theoretical basis for the combination of them and further clarifies the research significance.Chapter 2 clarifies the concept and theoretical basis of large-unit teaching and subject knowledge graph,analyzes the theoretical convergence point of subject knowledge graph and large-unit teaching and the advantages of the combination of them,and provides theoretical support for subsequent research.The second part is practical research.Includes chapters 3,4 and 5.Chapter 3 is framework-building.Firstly,the construction process of high school physics knowledge graph is introduced,and then based on the design process of large units proposed by Professor Cui Yunhuo,combined with the characteristics of physics,the advantages of combining knowledge graph and large unit teaching is fully utilized.A framework for teaching large units of high school physics using knowledge graph was constructed.Chapter 4 selects the two units of "The Relationship between Motion and Force" and "Parabolic Motion" of the compulsory textbook of high school physics,and uses the framework proposed in Chapter 3 to design the teaching of large units of high school.Chapter 5 conducts teaching practice and analyzes the effectiveness of practice.Questionnaire tests,interviews and other methods were used to analyze the implementation effect of using knowledge graph to carry out high school physics large unit teaching.The practical results show that the use of knowledge graph to carry out the teaching of high school physics large units has improved students’ physical thinking ability and students’ academic performance.Among the five dimensions of physical thinking ability,the improvement of creative thinking ability,physical problem solving ability and metacognition and evaluation ability is relatively obvious.The results of the interviews show that teachers and students accept and recognize this new teaching method.The third part is reflection and prospects.In the sixth chapter of the research,the conclusions of this research are sorted out and reflected.The theoretical significance of this study lies in the analysis of the theoretical convergence between knowledge graph and large-unit teaching and the advantages of combining the two.This paper constructs a framework for using knowledge graph to carry out the teaching design of large units of high school physics.The practical significance lies in the teaching design of the large unit of high school physics by taking the two units of "The Relationship between Motion and Force" and "Parabolic Motion" as examples.The practical effect of using knowledge graph to carry out the teaching of large units of high school physics was analyzed,and corresponding teaching suggestions were put forward according to the practical results.This research is the first attempt to combine subject knowledge graph with large-unit teaching,and while some progress has been made,there are also some shortcomings.In future research,we can continue to explore the theoretical basis of combining subject knowledge graph and teaching of large units of physics in secondary schools,and optimize the original framework.Further enrich the themes and lesson types of large-unit teaching design,and adopt more appropriate teaching methods to provide a good reference for frontline teachers to carry out large-unit teaching and improve students’ core literacy.