The Organization And Practice Of Project Learning In Middle School Chemical Experiment

Chemistry is an experimental subject.Chemistry experiment is not only an important basis for the development of chemistry,but also the core content and basic way of chemistry education,especially basic chemistry education.It is the most important means to cultivate students’core chemistry literacy^[1].In the actual teaching,due to the limitation of teaching hours,the teaching method of chemical experiment is still based on teachers’demonstration.Project-based learning is a learner-centered and problem-oriented learning mode,in which students complete the experiments in the form of groups in real situations^[9].Advocating independence,cooperation and exploration,project-based learning of chemical experiments organized in the form of associations can not only make full use of students’spare time,but also cultivate students’spirit of cooperation so as to truly cultivate students’practical ability to analyze and solve problems.The main contents of this paper are as follows:First of all,the research direction of this study is determined through the subject search of chemistry education and chemistry experiment teaching in studies at home and abroad.Science education is a methodology,which needs the support of relevant educational theories.Under the guidance of learning motivation theory,learning constructivism theory and multiple intelligence theory,this study defines the basic principles of chemical community organization and determines the research ideas,research methods and research contents.Secondly,this paper analyzes the concept and characteristics of project-based learning and community organization,summarizes the preparation work for the implementation of project-based learning in the society of copper and zinc chemistry in Zunyi No.1 high school,and understands the situation of students.It puts forward the organization and practice strategies of project-based learning in high school chemistry.According to the students’learning situation,this paper puts forward that the content of community practice’s selection should consider four dimensions:openness and science,innovation and green,interest and social value,and safety and feasibility.This paper analyzes the advantages of putting the project-based learning of chemistry experiment into practice in the community.Finally,in view of the above theories,this study applies it to the specific organizations and community practice;this paper also sorts out the practice process and respectively elaborates the specific implementation process of chemistry and life project,comprehensive chemistry project and chemistry and manufacture technique,based on the four typical cases:homemade household disinfectants,simple household sewage treatment,the path to retrace alkali production as well as Maotai liquor brewing technology and wine culture.This includes three stages.Before the experiment,the author of this paper investigates the students’basic learning situation,divides them into groups and determines the content of this study.During the experiment,according to the type of selected item,this paper chooses the appropriate approach,such as the project research process of Maotai liquor brewing technology and wine culture which involves understanding project–data collection–sharing among groups-field-investigation,writing the essay.At the same time,the project process is managed by the teacher who emphasizes the key points in the project process and safety while experimenting.After the experiment:the teacher evaluates and summarizes the project completion process according to the students’project target completion record and gives a feedback on results of the project.Through various types of project content and the combination of club activities in various ways,such as campus research and off-campus investigation,students’awareness of independent innovation,ability to cooperate with others,knowledge and cultural level and practical skills are cultivated which have become the necessary skills for talents.Comparing the pre-test with post-test of students in chemistry club,this study finds that project-based learning in chemistry experiment is more effective for students with lower proficiency.Besides,students can effectively put knowledge and skills into practice and therefore,they can improve their ability to innovate and explore,which is beneficial to cultivate students’subject core literacy.In the meantime,this paper studies,enriches and continuously improves the theory of project-based learning mode in chemistry experiment through the practice of the community and forms a partial fixed experimental schoolbook for future research,which provides material for the compilation of later textbooks for community activities and provides reference for better chemistry experiment teaching and evaluation mode.