A Study On The Application Of The Dichotomous Classroom Teaching Model In Biology Teaching In Junior Middle Schools

The PAD class is a new teaching model proposed in 2014,The main operation flow includes: teacher presentation(Assentation),internalization(Assimilation),and student discussion(Discussion),the internal absorption of students after class has become a key innovation in the PAD class.By referring to relevant materials,it is found that there are few complete teaching practices in PAD class in the middle school biology classrooms,combined with the current problems in the junior middle school biology classrooms,such as students' poor self-learning ability and poor initiative in learning.This study attempts to conduct teaching research on PAD class teaching in junior middle school biology teaching,and obtains feedback from the teaching process to explore the impact of PAD class on student's initiative and communication skills.This research mainly did the following work:(1)To summarize and summarize the relevant literature of the PAD class teaching model,and elaborate on its research status.It is found that there is a shortage of research on the PAD class model in junior middle school biology,which provides a theoretical basis for formulating research plans.(2)Try to adopt the PAD class teaching mode of junior middle school biology,and put forward its application principles and design application strategies.(3)From the case of three teaching practice,show the implementation process of PAD class in junior middle school biology teaching.(4)Through the classroom performance,questionnaire survey,student interviews and achievements,it analyzes the impact of PAD class in junior high school biology teaching.(5)Identify the problems and give solutions to them in the process of applying thePAD class to the junior middle school biology teaching.In this study,literature research methods,survey research methods,and experimental research methods were used.The two parallel classes of the eighth grade(14)and(19)classes of the middle school affiliated to Yan'an Vocational and Technical College were taken as the research objects,of which(14)was the experimental class and(19)was the control class.The experimental class adopts the PAD class mode,the control class adopts the traditional teaching mode.The practice time is 4 months,which is divided into the early stage of implementation,the middle stage of implementation and the late stage of implementation.During the two classes,the teaching content is the same,and the same biology teacher teaches.Finally,through the four aspects of classroom performance,questionnaire survey,student interviews and score analysis,the following conclusions are comprehensively drawn:(1)Through the implementation of the PAD class teaching model,students' enthusiasm and initiative in the biology classroom have been improved,the classroom atmosphere has been significantly improved,and student participation has increased.(2)Through the discussion of the PAD class teaching model,students' communication and expression skills have been well trained and developed,at the same time enhance students' sense of cooperation.(3)In the process of the PAD class teaching practice,some problems were found and corresponding solutions were given.(4)Compared with the traditional classroom,the PAD class can more effectively concentrate students' attention,and at the same time get the support of students.In summary,it can be found that the PAD class can enhance students' enthusiasm to a certain extent,and allow students to really participate in classroom learning.The impact on the teaching effect is also positive,but due to the lack of teaching experience and short-term The implementation is divided,so the impact on student performance is not obvious,and no conclusion has been reached that can significantly improve student performance.Therefore,the impact on performance can be left to verify the practice ofbisection teaching in the future.In short,the efficient application of PAD class requires both teachers and students to learn from and cooperate with each other.Teachers need to improve their abilities and be good at observing students 'learning status,with a view to achieving students' "gradual autonomy".