With the improvement of the country’s comprehensive strength and the improvement of the public’s requirements for the quality of education,there is a need to further deepen the reform of the basic education curriculum since the beginning of the 20 th century.Therefore,in December 2011,the Ministry of Education officially issued the "Compulsory Education History Curriculum Standards(2011 Edition)",which blew the horn of further deepening the reform of junior middle school history curriculum.In order to implement the new curriculum reform concept,the status of history textbooks as a "study book" has been further improved.In the autumn of 2017,provinces across the country began to use the junior middle school history textbooks compiled by the Ministry of Education in the first grade.The compiled version of the junior middle school history textbook is composed of two parts: the text system and the text auxiliary system.The text system has always been the focus of attention from all walks of life.Whether it is education administrators,textbook compilers,researchers,or teachers,the text system is the core of the textbook,and the text system is not very important.The text auxiliary system is also one of the main components of this textbook.It and the text system together form the overall content of the history textbook.It is the expansion and deepening of the text system.It is an inseparable part of the textbook.It is also the main basis for student learning and teacher teaching.As a junior middle school history textbook in the new era,the text auxiliary system in the book is composed of various forms of columns.According to the different functions of the text auxiliary system columns,it can be divided into tutoring system,interpretation system and consolidation system."Knowledge development" The column belongs to the consolidated system of the textbook auxiliary system of the junior high school history textbook.The "knowledge development" has its own unique structure,status and value,which is worthy of study.The "Knowledge Expansion" column is an important text auxiliary column in the compiled version of the junior high school history textbook.It not only supplements and expands the content of the text,but also trains and enhances the ability of students.This article takes the auxiliary column "Knowledge Development" in the edited junior middle school history textbook as the research object,and combines the contentof the textbook to study "Knowledge Development" from four aspects: First,compare "Knowledge Development" with other auxiliary columns,find "Knowledge expansion" has a unique status and is evenly distributed.It appears in every lesson.Second,it explores the internal connection of "knowledge expansion" and finds that the content of "knowledge expansion" can be divided into five types.The design of "knowledge expansion" has Five characteristics;then,observe the performance of "knowledge expansion" in teaching,and find that "knowledge expansion" has three basic functions,which can be used in all aspects of teaching;finally,put "knowledge expansion" in the development of history teaching Thinking in the background,I hope that through the study of "knowledge extension",I will enrich the junior middle school history textbook text auxiliary system and specific columns,and provide suggestions for the practical application of "knowledge extension" in teaching activities. |