The Analysis And Teaching Case Study Of Junior Middle School Chemistry Course Under The Combination Of Three Orders

Ninth grade chemistry is the initial stage of learning chemistry,the content including the common chemical properties and basic chemical experiment skills,basic chemical terms,and simple quantitative chemical,and so on?in the middle school stage,chemical knowledge is arranged in a spiral ascending structure.The knowledge of the same plate,at different stages,will learn from different aspects according to the students' cognitive level and psychological development order.In the course of classroom teaching,we should combine the logical order of chemical knowledge,the cognitive order of students and the order of students' psychological development.The logical order of chemical knowledge,the order of students' cognition and the order of students'psychological development are also referred to as "three orders".The logical order of chemical knowledge,the order of students'cognition and the order of students' psychological development are also referred to as "three orders".The "three-order combination" is an important principle in the compilation of textbooks,which plays an important role in the research field of teaching materials.There are also studies showing that in the course of teaching,teachers need to combine"the logical order of teaching materials","students' cognitive order" and"students' psychological development order".This paper mainly studies the "three order combination" in ninth grade chemistry teaching.This paper mainly through the literature research to determine the junior middle school chemistry learning of basic cognitive sequence and the main factors that influence the learning psychology.In addition,this paper discusses the concrete ways of "three-order combination" from the perspective of course content and distribution of chapters.Through regular classroom lectures,the classroom design of several teachers is analyzed from the perspective of "three-order combination",and a one-to-one interview is conducted to summarize the classroom characteristics of the teacher.The research shows that:the teaching experience of teachers pay more attention to students' learning psychology in the classroom and on the choice of teaching material,pay more attention to conform to the students' cognitive order,new teachers pay more attention to the logical order of knowledge,and not very good deal with the students' cognitive sequence and the logical order of knowledge,the relationship between the control on the students' learning psychology in the teaching experienced teachers can effectively use the material in the actual life and teaching materials stimulate interest in learning,inspire thinking.