| The basic education curriculum reform has been promoting energetically in China. It is necessary that new concepts of teaching which is compatible with the new curriculum and new strategies of teaching for teachers to scientifically and effectively implement new curriculum teaching. The ideas of new curriculum must be implemented by class teaching and the objectives of new curriculum are embodied in the changes of students eventually, otherwise, it will be difficult to get good results. So the most important, the immediate task for educators to implement new curriculum teaching is going deep into the educational field and taking class teaching researches.This thesis was brought forward in the background of education curriculum reform and focus on one of the angles--promoting biological classroom instruction validity in middle school. In the foundation of summing up the research situation of classroom instruction validity both at home and abroad, unscrambling the new course standard of biology in junior and senior middle school, analyzing the factors which impact the traditional classroom instruction validity, the writer discuss on teaching strategies of classroom instruction validity in middle school and put forward some related ideas. The results of this study are useful for changing the inefficient or invalid phenomenon in traditional classroom, promoting teachers' theoretical level, enhancing teachers' professional knowledge and competence, promoting the changing of teaching concept and teaching method, getting effective implementation of the basic education curriculum reform, improving classroom instruction validity, and fully advancing comprehensive education.In this study, action research is mainly used. Base on a variety of case studies of biological classroom instruction, summary of important experience which in my educational practice, and combining with the theory of classroom instruction validity and the features of biology, the writer put forward some suggestions which can improve biological classroom instruction validity. There are a considerable amount of cases on classroom instruction in this thesis, all of them under the new course standard of biology in junior and senior middle school.This research by a series of case studies, drew a conclusion on improving classroom instruction validity:should pay attention to encourage students'subjective activity and take the development of subjectivity classroom instruction; constructing developmental classroom instruction; preaching reflective teaching; effective biological classroom instruction should point at "return to life"; should pay attention to the effective integration of courses and modern information technology. Meanwhile, should pay attention to training students'study method, new curriculum advocate students understand autonomic learning, cooperative learning and inquiry learning. |
