An Empirical Study On The Optimization Teaching Mode Of Chemical Triple Representation Thinking Ability

The Three Representation thinking is a unique way of thinking in chemistry,and students also have different degrees of obstacles in the study of teaching content corresponding to the three representations of chemistry in the past.As a junior high school chemistry teacher,the author found that many teachers themselves were blurred in the concept of the three representation.The teaching method was more inclined to traditional teaching,without thinking training consciousness.In order to cultivate the Three Representation thinking ability of junior middle school students in grade nine,and to improve the teaching content of students' learning three,this paper adopts the literature research method,text analysis method,experimental research method,measurement statistics method,questionnaire survey and personal interview method to divide the process of solving the problem in four stages.Theoretical analysis,training three representations of thinking to optimize the teaching mode of the preliminary research work,the three represents the training of thinking practice research,results evaluation.This paper analyzes the definition of the core concepts of this subject,and analyses the distribution of three representations of chemistry in junior high school chemistry,the analysis of the three representations of teachers themselves teaching,the difficulties of the three representations of the students in the past,and finally makes an experimental inquiry into the four instructional designs of cultivating the three characterization thinking.This study selected XinHe Street school in wuhan city the ninth grade two parallel class 36 students as the research object,select the number of 17 experimental classes,and the number of experiment research for 19 people control class.Under different attribute types according to the requirement to master the knowledge and ability of different levels,making the test,and triple characterized by an open design questions for students thinking training situation analysis of the depth interview.Finally,it is concluded that the cultivation of the triple representation is feasible,and the experimental class which has been cultivated by the triple representation has better grasp of the corresponding teaching contents.2.There is no significant correlation between the cultivation of the thinking ability and the gender of the triple representation;3.The effectiveness of the training of triple representations is mainly reflected in the students' learning difficulties,but the effectiveness is not obvious to the students.4,experimental classes of macroscopic,microscopic and symbolic representation of the cognitive level of understanding and multiple representation transformation ability were significantly higher than the control class,but the relationship established between multiple representation level significantly lower than that of single and multiple characterization of representation of the cognitive level of understanding.