Research On Conservation Law In Chemistry Teaching In Senior High School

The idea of conservation law is the basic idea in the core accomplishment of chemistry.According to the goal of cultivation of chemical core quality,students' conservation ideas should be gradually permeated and incorporated into in the process of teaching.The establishment of conservation thought is beneficial for learners to understand the connotation of material changes and form the thinking mode of chemistry.Because college entrance examination is an important means of testing teaching,it is very important to study the research on conservation law in chemistry teaching in senior high school.In this paper,the classification and research status of solving problems of conservation method are sorted out by literature analysis.Based on the requirements of the curriculum standards and examination syllabus for chemical exam questions using text research method,the national college entrance examination chemistry volume ?,?,? were studied from 2016 to 2019,This paper analyzes the main contents of the chemistry conservation law in recent years.It is found that there are a lot of contents about the conservation of chemistry in college entrance examination.At the same time,typical exam questions of the college entrance examination of chemistry was selected which involved charge conservation,electron conservation,mass conservation,energy conservation,comprehensive conservation,Through the comparative analysis of problem-solving process and method,it is concluded that although some problems can be solved by the conventional methods and the conservation methods,can omit a lot of complicated process,save time,improve the efficiency of solving problems and so on.On account of constructivism and multiple intelligences,the teaching suggestions were constructed.The concept of solving problems due to conservation laws were put forward:(1)study the conservation questions and analyze the trend of proposition rule of college entrance examination;(2)deepen the study of textbooks and dig the conservation ideas contained in textbooks;(3)create situations in the new teaching to ingeniously penetrate conservation ideas;(4)integrate,perfect and develop students' ideas of chemical conservation effectively by revision lessons.