Research On Teaching Strategies Based On The Induction To Promote Effective Construction Of Junior High School Science Concept

Concept teaching can improve the ability of knowledge construction for junior middle school students,which has become a kind of teaching mode for education who would agree.concept construction is the core part of the concept of teaching.In the concept construction,teachers guide students to find the similarities between them,to introduce concepts and to test them through a large number of perceptual material,so that the students form a new cognitive on the basis of the original cognitive.In the process of conceptual construction,the abstract thinking ability of junior high school students has not been fully developed,and it is difficult to fully understand the abstract concepts such as density,which has a great impact on the later application.Inductive reasoning is an effective way to construct concepts.Induction predictable,human beings' cognition of the material world is the most important one kind of scientific method,also is a kind of method is very accord with the characteristics of middle school students' cognitive,induction has formed a complete theoretical system.However,in the science teaching of junior high school,the induction method is not manifested as the invisible method,and the corresponding research is not much.Through the application of induction in daily teaching,this paper summarizes three aspects: the teacher pays attention to the form of scientific inquiry and ignores the students' cognitive characteristics,thus making the concept construction unclear;The induction method is not suitable,and there is no suitable model.There is no push,inductive use,no inductive depth.Then,it summarizes three strategies to promote the construction of scientific concepts by induction: 1.2.The connotation and extension of profound perception and induction;3.Fully experience the essential properties of induction and make explicit the implicit conditions of the teaching materials.Moreover,based on case analysis and practice exploration,typical cases are presented from three aspects of physics,chemistry and biology,and the cases are summarized and improved.Concept teaching has great influence on students' daily study and future development.Induction as a kind of important scientific method in the concept teaching,through the former concept arouse students,lets the student induces the difference of learning concept and the former concept,and make students truly construct concept,create new cognition.It can be said that induction is a sword for students to explore the scientific world.