Research On Teaching Design Of Plane Geometry In Junior Middle School Based On PAD Class Teaching

With the development of science and technology,human society has entered the era of information fragmentation.Students who grow up in this background are more likely to be disturbed by the abundant and interesting information from the outside world and have difficulty in focusing on their studies.In response to this problem,professor Zhang Xuexin of Fudan University proposed the teaching model of PAD Class Teaching(also known as PAD Class Teaching)in 2014.PAD Class Teaching divides teaching into three distinct segments: presentation,assimilation and discussion.In the presentation stage,teachers teach the key points and structural framework of knowledge,and students learn the details and applications of knowledge.In the assimilation stage,students are required to consolidate what they have learned,explore what they have not learned,and complete sharing-testing-helping,so as to prepare for the discussion of class.After learning knowledge independently,students deepen and update their knowledge through interaction and exchange,and realize group learning knowledge in discussion.Students in the first and second semesters learn most about the operation of numbers,and have relatively little experience with geometry learning.Junior high school students who have just been exposed to this content feel that the flexible problem solving methods and complicated problem-solving steps in geometry problems.Therefore,most students will encounter difficulties in the study of plane geometry,thus lacking interest and having the wrong attitude.Since PAD Class Teaching was founded in universities,it has been introduced into the classrooms of primary and secondary schools in recent years.There is little research on junior middle school mathematics,and the theory is not yet complete.PAD Class Teaching is a new perspective for the Teaching of plane geometry in junior middle school.Therefore,this study is of great significance.First use the literature research method,carefully read the literature in order to correctly grasp its concept and operation process,and analyze the rationality of the application of PAD Class Teaching in plane geometry Teaching in junior middle school from the perspective of concept and method,summarize the similarities anddifferences between the PAD Class Teaching and Teaching models proposed in China and abroad in recent years.Second the use of questionnaires and interviews,combine the learning situation of students and teachers' Teaching Suggestions,and effectively combine PAD Class Teaching with plane geometry Teaching in junior middle school,explain the design process of plane geometry teaching in junior middle school based on PAD Class Teaching.In addition,the specific teaching design of the two classrooms is presented,which is expected to provide theories and broaden research ideas for many teachers to apply to divided classes,so as to achieve teaching tasks perfectly.The study found that most of the motivation of students came from external factors and they lacked interest in geometric knowledge;most students lack confidence in learning,and their learning attitude needs to be corrected;the difficulty of learning plane geometry is concentrated and students expect to achieve a breakthrough;for the teaching-only teaching mode,students tend to feel tired,students hope to have more power to express their views in classroom learning.Based on the above conclusions,PAD Class Teaching was chosen for the design of plane geometry teaching.PAD Class Teaching is highly targeted attitude and focuses on solving the common problems of students;The study with "gaps" is beneficial to the cultivation of students' autonomous ability,gain a successful and enjoyable experience in the learning of remaining knowledge;Build a stage for students to express themselves creatively in the discussion session to help students release themselves and cultivate interest.The process of the divided classroom teaching mode is simple,which is easy to operate for both novice and senior teachers,the classroom atmosphere is relaxed and cheerful,the relationship between teachers and students is harmonious and friendly,the teacher stimulates the students' intrinsic motivation to study imperceptibly,and encourages the students to continue to work hard.