Research On The Evolution Of Experiments In High School Chemistry Textbooks In The 70 Years Of New China

Textbooks are a form of "materialized" teaching content.They are both a microcosm of society's requirements for cultivating people at different times and a concentrated expression of education's response to social needs.The study of textbooks can not only restore the teaching situation at that time,but also provide some historical experience for basic education now and in the future.With the promulgation of the chemistry curriculum standards in 2017,textbooks have become an important carrier of curriculum reform,and a new round of textbook writing based on core literacy has emerged as the times require.In the 70 years since the founding of New China,there have been "changes" and "unchanged" experiments in textbooks.This paper studies the 70-year history of the evolution of experiments in high school chemistry textbooks in China,traces the source from a historical perspective,and bases on the ideas of chemistry curriculum reform in middle schools in China and the writing of experiments in textbooks.It mainly uses literature research,comparative research,and interviews.In other methods,the characteristics and causes of experimental evolution in high school chemistry textbooks in China were combed and analyzed,with a view to selecting and compiling future textbook experiment content,as well as the use of experiments in classroom teaching,providing some reference history.experience.The conclusions reached in this study are as follows:(1)New China's 70-year demand for experiments has generally increased.From paying attention to the verification of the knowledge of the experiment to payingmore attention to the inquiry and comprehensiveness of the experimental process.From simple experimental operation skills to paying more attention to the ability to design experiments and scientific inquiry.(2)From the content of the experiment in the 70 years of New China,the experiment gradually focused on the connection between experiment and life,and paid more attention to STSE education.Experiments have "change" and "unchanged".During the evolution process,the experimental content is continuously deleted and supplemented.Some experimental content is deleted from the textbooks during the evolution process,and some experiments have been unique for their unique experimental value..(3)In the 70 years of New China,from the perspective of the preparation of the experiment,the experimental column has become more diverse from the single,and the experimental equipment has also been diversified.From simple petite glass tubes to complex large-scale instruments,the colors of the experimental illustrations have changed from black and white The structure diagram is transformed into a colored physical picture.