Research On The Teaching Of Junior High School Biology Review Course Based On Core Concepts

In the context of the rapid development and popularization of the Internet,explosive and aggregative information content is constantly generated.In the face of the fast food cultural atmosphere,most people focus on the superficial phenomena and ignore the deep thinking.Under the influence of such social environment,students' concentration on learning is reduced,and the learning time is very limited.Under this contradiction,how to improve students' ability to extract the main knowledge is particularly important,thus "core concept" has become a topic of concern among junior high school educators.In consideration of the characteristics of biology in junior high school,this paper discusses the teaching of review lessons based on core concepts,aiming to help students build "core concepts" effectively,and provide the reference for the front-line junior high school biology teachers.The research mainly adopts the literature research method,questionnaire survey method,case study method,experiment method and other educational research methods,which is divided into five chapters.In Chapter 1,there is an introductory chapter about the background of the research topic,elaborating the current research situation at home and abroad,and discuss the significance and technique of the research.The chapter 2 defines the concepts,the core concepts of biology and recitation classes and introduce the theoretical basis which related to those parts.The chapter 3 adopts the questionnaire survey method to get to know the current circumstance of review class teaching of junior high school biology.The chapter 4 firstly focus on the problems in the teaching practice on basis of theoretical research,putting forward a strong operable teaching design ideas based on the core concept of junior biology.The teaching design process contains the selection of the core concepts of the textbook and the analysis of concrete learning situation of students,the making of the determination and difficulties of teaching objectives,the selection of suitable teaching strategies and the design of specific teaching processes.The teaching process design,which is mainly about to choose feasible teaching strategies,including the concept map teaching strategy,mind map teaching strategy,problem driven teaching strategy and so on.Then based on the teaching design ideas been constructed,the related case design,analysis and experimental research of the unit "metabolism in human body" are carried out.We chose two parallel classes in Grade 9 as the research objects,and the pretest was conducted before the experiment,the results of which showed no significant difference.Then through the post-test analysis of the data of the control group and the experimental group,which were processed by SPSS statistical software,we can see that the teaching design which is based on core concepts was highly efficient.In chapter 5,we summarizes the research results about this topic,making a review and some further plans for the research based on the relevant results.Through this research,the main conclusions are as follows:(1)We conducted the recitation teaching of junior biology which based on the core concept,and make teaching design for the specific content of grade 7 part 2 "the metabolism of human body",to improve the junior middle school biology recitation teaching mode and help teachers design their teaching mode more effectively,making students understand and master the core concepts in biology better as well.(2)Apply the teaching design based on the core concept to teaching practice,and by experiment to examine the students' understanding and application of the core concept,so as to test the application effect of the review lesson teaching centering on the core concept.