A Comparative Study On The Experimental Content Of New And Old Teaching Materials In Senior High School Chemistry

Basic education in our country shoulders the important task of cultivating talents for the future society.Education must continue to reform and keep up with the pace of the times in order to meet the society's requirements for talents.Under the guidance of the "Opinions of the Ministry of Education on Comprehensively Deepening the Curriculum Reform and Implementing the Fundamental Task of Lide Shuren",the "High School Chemistry Curriculum Standards(2017 Edition)"(hereinafter referred to as the new curriculum standards)and the New People Education Edition high school chemistry textbooks(hereinafter(Referred to as the new textbook)will be launched successively in 2019.The compilation of teaching materials is related to the implementation of educational policies and the development of students,and is an important basis for students and teachers to carry out teaching activities.As a chemistry teaching,experiment is the core content of chemistry teaching.The design and arrangement of the experiment show the curriculum concept and the goal of talent training,and it also directly affects the teaching effect of the classroom.At present,there are relatively few comparative studies on the textbooks of the2004 and 2019 editions,and the research results mainly focus on the presentation of the overall teaching content in the old and new textbooks,the deletion and change of content,the difference in sequence structure,and the practice of typical teaching content However,the research on the experimental content in the textbooks is relatively superficial and simple.Although there are researches on teaching design strategies involving experiments,there is a lack of research on the experimental teaching practice of new textbooks.This article first compares the similarities and differences between the new curriculum standard and the old curriculum standard("High School Chemistry Curriculum Standard(Experimental Edition)")from the experimental teaching objectives,experimental teaching implementation suggestions and experimental teaching materials compilation suggestions,and compares the 2004 PEP version of high school The experimental part of the chemistry textbook(hereinafter referred to as the old textbook)and the new textbook has carried out the presentation of the experimental content in the textbook and the specific changes in the setting of each chapter from the experimental columns,experimental illustrations,and descriptions of experimental procedures.A comprehensive comparative study summarizes the characteristics of these changes.Then select the three classic experiments shared by the new and old textbooks-the purification of coarse salt,the configuration of a certain amount of concentration of the solution,and the influencing factors of the chemical reaction rate for empirical research,and try these experiments according to the experimental content of the new and old textbooks.The comparison shows that the three experiments in the old and new textbooks have their own advantages and disadvantages in terms of experimental purpose,experimental supplies,experimental procedures,and the cultivation of students' thinking ability.On the basis of the foregoing research,the teaching design of the purification experiment of coarse salt was carried out according to the experimental content of the new and old textbooks,the experimental class and the control class were selected for teaching implementation,and the questionnaire was designed and then the teaching effect was investigated and researched,and the results were summarized.I hope that the experience and gains of the teachers will be helpful to the frontline teachers in using the new teaching materials.Through the comparative study of the experimental content of the new and old textbooks,the following conclusions can be drawn: Compared with the old textbooks,the new textbooks have richer types of experiments,and different types of experiments have their own emphasis on the cultivation of students' academic literacy,and students must set up experiments.It highlights the importance of experiments and emphasizes the cultivation of students' hands-on ability;the compilation of new textbooks is carried out on the basis of the new curriculum standards,introduces the concept of chemistry literacy,and adds some exercises in students' thinking and close to life production practices The experimental content of the new textbook is more in line with the development requirements of the students;the new textbook pays more attention to letting students explore experimental phenomena and design experimental schemes in the design of experiments,so that students can design experiments by themselves after mastering scientific experimental methods,To enhance the cultivation of students' experimental inquiry ability...