| With a further development of the new curriculum reform,the real situations in production and living are increasingly evident in chemistry.It has become one of the hotspots and difficulties in chemistry subject test to solve the problem based on the process of chemical industry according to the problems in National College Entrance Examination in different parts of the country these years.It requires strong ability to deal with new information and attention to development front of chemistry to solve the kind of problems based on actual process of industry leading to covering a wide range of knowledge.Project-based learning is a teaching method based on constructivism which emphasizes the open inquiry activity based on the tasks designed delicately by the teachers centering on the students under the guidance of the project.This study applies the project-based learning model to solving chemical process problems,designs specific project-based learning cases and organizes implementation,analyzes its teaching effect through questionnaires,written tests and interviews so as to verifies the feasibility and effect of project-based learning in solving chemical process problems on the two side of theory and practice.The thesis mainly includes the following parts:The first part is the introduction.This part mainly introduces the background,goal and significance of the research,and also involves the ideas and methods of the research.The second part is the research review.It defines the related concepts of project-based learning and chemical process problem,and introduces the research status of project-based learning and chemical process problem.The third part is the characteristics and development trend of chemical process test problems.It mainly makes statistics,analysis and summary of the chemical process problems in chemistry subject tests of the national volume of National College Entrance Examination from 2018 to 2020.The fourth part is investigation and analysis on the current situation of learning chemical process problems.It is mainly to understand the students’ learning status and solve the problems of chemical process problems.The fifth part is the development of teaching cases based on project-based learning.According to the aspects of chemical production and chemical technology,this part designs some chapters of teaching materials about solving chemical process problems.The sixth part is the project-based learning experiment process and the result analysis.The experimental group and the control group were selected for pre-test and post-test,and the questionnaire method and interview method were used to process and analyze the data so as to draw the conclusion.The seventh part is the summary and prospect.This part mainly includes the results of this study,and reflects on the shortcomings of this study,as well as the relevant enlightenment to the teaching work.Through this study,the final conclusion is as follows:Although project-based learning can not significantly improve the students’ chemistry scores,but for the students’chemical process problems,the scores are significantly improved. |
