Study On The Characterization Of Chemical Quadruple Characterization In Senior High School Students

The new round of curriculum reform emphasizes the importance of improving students' core qualities.In the recently promulgated "Ordinary High School Curriculum Standards",each discipline consolidates the disciplinary core qualities of the discipline based on the nature of its own discipline.Among them,the literacy of macroidentification and micro-analysis is in agreement with the theory of multiple representations.The theme of chemical balance is the embodiment of changing concepts and balanced ideology.And in the conversion of student representation,it can also reflect the students' evidence reasoning literacy.Therefore,starting from the topic of multiple representations,this paper uses the subject of chemical equilibrium as a research vehicle to study the ability of students to convert between different representations.This study focuses on the four-character representation of conversion capability.Under the guidance of SOLO classification evaluation and other theories,it uses domestic and foreign relevant research results for reference,and uses the knowledge of chemical balance as a research carrier to compile the ability to reflect the transition between students' characterizations.The test volume was tested at different stages and at different levels in M schools in M County,Dingxi City.SPSS 21.0 was used to analyze the test data.The study found that there are still some problems in the overall representation of students in the conversion ability.Among them,the characterization conversion ability based on the curve representation and the microscopic representation as the destination point is relatively weak.This should be due to the fact that the complexity of the curve information leads to students not being able to screen the valid information and the micro-world is too abstract to cause students to fail to scientifically describe the microscopic nature of the reaction.In the study of the differences in the ability to represent conversion ability,in grade differences,in addition to the direction from the symbol to the microscopic representation,the second grade is better than the third grade;in terms of gender difference,male and female students in most of the representational conversion ability except for the micro interpretation The difference is not significant.Differences in classes differ significantly between key classes and parallel classes.Based on the analysis of the above data,this study also proposes some strategies for improving the students' representational ability to transform,specifically including: Focusing on cultivating students' micro-imagining ability and image mining ability,and guiding students to think and form multiple issues from the perspective of multiple representations.The way of thinking of characterization is to improve students' consciousness of transitions between multiple representations and to link these representational transformations together for training.The students' thinking about the transformation of representations must be practiced and reviewed.This will help students to understand and understand chemistry in a variety of ways.I hope to provide reference for the cultivation of students' core literacy and teachers' chemistry balance teaching.