Study On The Effective Teaching Strategy Of Chemical Languagesin Junior Middle School

Chemical Language is the character unified by international Chemistry Community,and has features of concise & clear,information rich and international universal.According to the regulation of Compulsory Education Chemistry Curriculum Standard(hereinafter referred to as “curriculum standard”),“Chemistry is a science that studies the nature,composition,structure,and change law of the molecules at the atomic level,and its nature is the research and creation of substances”.Chemical terms are used to represent the basic knowledge of the composition,structure,nature,and variation of the substance,and the bridge between macro and micro.In the process of learning chemistry,the material should be recognized based on the quantitative and chemical termsaccording to “curriculum standard”.Chemical terms as a unique scientific language of chemistry,students must often review,reduce the forgotten,and then to achieve will be read,will write,will use,to form the basic skills of chemical science,and to promote the development of chemical science literacy.But from my nearly ten years of rural junior high school chemistry teaching situation of the point of view,students generally think that knowledge in chemistry the trouble,complex,difficult,especially acid and alkali salt knowledge is more perplexing,related applications,such as inference questions,information,etc.often not know how to start,so the chemistry test scores of most of the students in diagnostic tests and examinations are generally low.It can be considered that the study and application of chemistry in junior high school is an important watershed in the chemistry learning of junior middle school students,and even some of the students are tired of learning or giving up on chemistry because of the difficulty in learning or hard to learn.In this paper,according to the current situation of clear requirements for “curriculum standard” and most students think that chemistry knowledge annoying,complex,difficult,especially acid salt knowledge of a multitude of things,perplexing.From the chemical terms,One is through literature consult,sorting and analysis,expounds the theoretical basis of the study of effective teaching in junior high school chemistry contain propose,connotation and characteristics of effective teaching theory;Constructivist teaching theory;Humanistic learning theory;Forgetting curve theory;Macroscopic-Symbol-Microscopic three representations theory.The other is through investigation of the learning situation of junior middle school chemical terms,in-depth analysis of learning difficulties and reasons of junior middle school chemical terms.We puts forward the teaching strategies of “clear the importance of chemical and chemical terms,strengthening method leading and a summary of the rules of learning chemistry,understanding and distributed memory difficulties and Practice-Consolidation-Application”.Then carried outthe two classes of effective teaching case study which according to the chemical valence of writing(Shandong education press on unit fourth section second)and the representation of a chemical reaction(Shandong education press on unit fifth section second).