Research On The Application Of "Problem Exploration,Training And Expansion" In Chemistry Teaching In Junior Middle School

The new curriculum reform of the "all for the development of students" as the core concept,under the concept,the school of design teaching strategy and activity,to uphold the "people-oriented" principle,in promoting the healthy growth of students,on the basis of cultivation of students' autonomous learning,working with people,to collect and process information and the ability to live independently.The establishment of the"problem exploration,training and expansion" leading teaching mode aims at enabling teachers to guide students to actively participate in the learning process,be willing to explore,cooperate and communicate with others,and finally deal with problems independently,so that students can learn actively and independently in the process of practice.This paper is divided into four parts:Part ?:Through the analysis of the traditional teaching mode with the teacher as the center,just pay attention to impart knowledge,ignoring the training students' ability,ignore the students' individual character development,and the present situation of the domestic and foreign research on teaching mode,this paper discusses the "problem to explore,expand training" leading the necessity of teaching mode,and build the significance of the teaching mode.Part ?:The theoretical basis of the "problem exploration,training and expansion"dominant teaching mode is expounded,namely,constructivist learning theory,humanistic learning theory,autonomous learning theory and cooperative learning theory.In addition,this paper expounds the structure of the leading teaching mode of "problem exploration,training and expansion",which is divided into four parts,namely,problem cutting,exploration leading,training achievement and expansion and innovation,and its characteristics,namely,students' view,teachers' view,textbooks' view,learning view and classroom view based on the new curriculum.Part ?:It expounds the objects of the application of the "problem exploration,training and expansion" dominant teaching mode in junior high school chemistry,as well as the applied methods and evaluation tools.Taking new lectures and exercises as examples,this paper respectively illustrates the specific application process of "problem exploration,training and expansion" leading teaching mode in junior middle school chemistry class.After a semester of practice,the students of the experimental group and the control group were learned about their feelings of chemistry class through questionnaires.The results of the experimental group and the control group were analyzed in a semester.The change of external dominance in the experimental group and the control group was observed and interviewed.Part ?:A summary of the application of the "problem exploration,training and expansion" dominant teaching mode in junior high school chemistry,the limitations of this mode,and the prospect of future classroom teaching.In junior high school chemistry teaching,the leading teaching mode of "problem exploration,training and expansion" can stimulate students' learning interest,cultivate students' communication and expression ability,enable students to learn chemistry in a pleasant atmosphere and improve their learning ability,which is feasible.