The Exploitation And Practical Inquiry Of The "High School Chemical Balance" Instructional Tool

Based on the requirements of the new chemical curriculum standard,this paper comprehensively explores the knowledge,academic situation and teaching status of chemical balance and its related knowledge points.On this basis,it develops teaching tools based on solving the difficult points related to chemical balance.And according to the problem-oriented teaching model,the author has written the teaching design of the knowledge points related to chemical balance,and uses computer-aided teaching to develop students' core literacy of chemistry such as “changing concept and balanced thinking”,“evidential reasoning and model cognition”.Through practical research,the author finds that using this teaching tool can improve students' enthusiasm for learning,knowledge mastery,and balanced concept understanding.This paper is divided into five chapters for research:The first chapter: Through the study of the current background of chemical balance teaching,the topic,the research design and the significance were written.The author found in the teaching practice base that the senior-two students' cognitive bias in the fourth elective chemical balance is likely to be due to the cognitive deficit in the chapter on chemical reaction rate and limit in senior-one.Through interviews,it was known that in the case that the common problems of the chemical balance of the senior one students were not broken,as the difficulty of the chemical balance was more in-depth,the senior-two students learn to be blind and float to show the cognition,so that the knowledge of chemical balance was more difficult to learn.Seriously.At the same time,by consulting the literature,the author found that most of the chemical balance teaching was based on theoretical learning,and there was no effective way to help students break through this learning difficulty.Therefore,how to make abstract knowledge concrete,enhance students' interest in learning,and solve the problem of students' chemical balance was the research direction;The second chapter: refer to the task requirements of the new curriculum standard to cultivate students' core literacy and according to the new and old curriculum standards and the analysis of the syllabus,the author re-listed the knowledge points of chemical balance learning and conduct an inductive analysis.The third chapter: According to the textbooks,curriculum standards,syllabus,reference documents and interview records of teachers and students,the commonproblems in the study of chemical balance were listed,and under the guidance of constructivism,recent development zone and PBL theory,The author exploited the teaching tools for solving common problems related to chemical balance,and introducd its software in detail.The fourth chapter introduced the teaching design that was based on the PBL theory and solved the problem of learning the chemical balance.The fifth chapter: the teaching tools were used in some of the class for senior-two and senior-three of the A school,and the data was collected regularly.After summarizing the data collected by the experimental class and the control class,it was found that the application of this teaching software can improve the basic concept of chemical balance and have a certain degree of helping in solving the chemical balance problem.The sixth chapter: the final part of this study was the overall induction,reflection and outlook of this paper.