Research On The Development And Implementation Of Project-based Learning Cases In Junior High School Chemistry

Since the beginning of the 21 st century,project-based learning education has been playing an increasingly prominent role in the cultivation of civic quality.Facing the coming era of information civilization marked by artificial intelligence,the how much knowledge is no longer the only ruler to measure a person literacy level,and have the ability to use knowledge to solve problems,become an important standard,new age citizens' literacy level education,the basis of the new age must solve heavy wisdom light,heavy fraction light educational realities,freed from the shackles of "test",it makes the important role of project-based learning constantly.It emphasizes that students are the main body of activities.With the support of teachers,they carry out research activities in the form of groups in familiar situations and take the initiative to build a knowledge system,so as to improve students' abilities in various aspects and promote their overall development.Through literature review,there are many reports on cases of junior high school chemistry project learning,but there are few cases about "making simple pH test paper",and they are all periodical articles,without specific classroom practice process.Based on this,this study first learned the theory of project-based learning,and then developed project-based learning cases with the help of this model,with the knowledge of junior three chemistry as the main carrier,and finally carried out practical application to explore the practical effect.After defining the general framework of project-based learning in chemistry teaching in junior high school,this study constructed the project-based learning teaching process with the knowledge of junior high school chemistry as the main carrier,and developed a project-based learning case suitable for rural middle school students--"making simple pH test paper".In order to explore the teaching effect of this case,this study adopts the quasi-experimental method,taking the students of two classes in the third grade of a middle school in Liang Dang county as the experimental subjects.The results show that the project example of "making simple pH test paper" developed in this paper can be carried out in rural schools.Students' subject knowledge,problem solving ability and teamwork ability have been greatly improved through project-based learning activities.Students are more interested in project-based learning activities andmore interested in learning chemistry,but they are not sure or have no idea about the future career in chemistry.Finally,the author according to some problems in the practice,the reflection: due to the project-based learning time consuming,difficult,high to the requirement of teachers' ability to many of the problems,the project-based learning teaching model also is not really into the regular classroom,the school teachers should give more support,and teachers should keep on learning,enhance personal ability,changing the concept of "exam-oriented education",change teaching methods,trying to project learning into the classroom,make its routinization,road on the right track in the reform,the training have essential character and the key ability for this new era.