A Practical Study Of Take Chemical History As The Real Situation Applied In Chemistry Teaching In Senior High School

In order to implement the new curriculum standards and give full play to the multiple values of chemical history materials,this paper carries out the research on situational teaching of chemical history,aiming at solving the problems of "emphasizing knowledge over literacy" and "emphasizing theory over practice";The value of chemical history has not been effectively developed and applied.This study follows the research idea from theoretical construction to practical implementation.Using the method of literature research,this paper determines the feasibility and effectiveness of the combination of "situational teaching" and "chemical history teaching",and defines the core concepts "chemical history" and "situational teaching".Using the method of questionnaire to understand the current situation of the application of chemistry history situation in senior high school chemistry teaching.On this basis,the situational teaching strategy of chemical history is determined,and the "four line" is adopted as the situational teaching mode of chemical history.The author starts with the teaching goal,collects historical materials,excavates the value of historical materials,constructs a "four line" model,sublimates the connotation of the subject,and designs the overall process of situational teaching of chemical history..This study takes the past and present life of the periodic table of elements,from air to bread and methane as specific cases to carry out teaching design and practice.The results show that the situational teaching of chemical history plays an all-round role in promoting students’ interest in learning chemistry,understanding chemical knowledge,participating in scientific inquiry,cultivating scientific emotion and developing comprehensive literacy.At the same time,it also provides new ideas for front-line teachers to develop the teaching form of chemical history.Innovation:1.The teaching design of periodic table of elements,synthetic ammonia and methane is carried out with the clue of chemical history.2.Taking the history of chemistry as the real situation,this paper constructs a "four line" model of specific teaching content,which is composed of "historical situation line","knowledge line","exploration line" and "evaluation line".3.Combining with the history of chemistry,arrange the corresponding chemical knowledge and design in-depth exploration activities.