Practical Research On Atomic Structure Teaching Based On Chemical History

The new curriculum goal of chemistry advocates the application of chemistry history in chemistry teaching.Atomic structure teaching is the key and difficult point of middle school chemistry.Atomic structure has complete materials of chemical history.Teaching atomic structure by using chemical history plays an important role in promoting students' understanding of the nature of science,the transformation of concepts and the understanding of knowledge.Therefore,the author chooses this part to study the teaching design and implementation of chemical history in order to provide reference for the teaching of atomic structure.This paper consists of five parts,the main contents are as follows:Part ?:Mainly expounds the problem,literature review,research purposes,significance and methods.Through the analysis of research background and current situation,the basic framework of this paper is determined.Part ?:The related theory of the study.This paper elaborates on three aspects:construction learning theory,the value of chemistry history education and the historical evolution of atomic structure theory,and determines the educational value of this paper in the study of chemistry history.Part ?:Firstly,the requirements of atomic structure in curriculum standards and its status and role in textbooks are analyzed in detail,and the contents of atomic structure to be studied in this paper are presented and analyzed to get the key knowledge of textbooks concerned in this part,and the corresponding solutions are put forward.The analysis of historical materials of atomic structure chemistry in textbooks published by the People's Education Press finds that this topic involves a lot of chemical historical materials.History of science and information cards appear most frequently,but they appear less frequently in the text.It can be seen that the history of atomic structure chemistry has not been paid attention to in the text of the textbook.Secondly,the study of atomic structure is analyzed from the students' knowledge base,pre-conceptual information and teachers and students.Part IV:According to the analysis of teaching difficulties,the teaching difficulties to be explored in this research institute are determined,and the teaching ideas are analyzed to find out the teaching ideas of this research design.The verbs of "2061 Project Research Group" in "Standards of Scientific Literacy" are used to illustrate the teaching objectives,and the teaching process is determined according to the teaching ideas.Finally,the teaching cases are designed,teaching practice is carried out and the students' origins are tested.Substructure Learning Questionnaire and SPSS,Excel software are used to analyze the quality of the test paper from the difficulty,reliability and validity.Finally,SPSS is used to analyze the results of teaching practice.Part V:On the basis of the research in this paper,the research conclusion is put forward.It is believed that using the history of chemistry to teach will help students understand the nature of science,the knowledge of atomic structure,the transformation of core concepts and the improvement of students' interest in learning.Some suggestions on teaching atomic structure are put forward,and the shortcomings of research are summarized.The future research work is also prospected.