中学生物课程的核心理念是以学生发展为本。事实上任何一个学生的知识积累和能力等方面都是不同的,要通过课堂教学使多数学生都有所提高,这就务必要在课堂教学中实施分层教学;新课程倡导生物学习的自主性、探究性和合作性,培养学生探究合作精神,这就要求在实施分层教学过程中,设计小组合作,全面优化课堂教学,使每个学生得到充分发展。 The core concept of secondary biology curriculum is based on student development. In fact, any one student’s knowledge accumulation and ability and so on are different, through the classroom teaching to make most students have improved, it is necessary to implement the teaching in a hierarchical manner; the new curriculum advocate the autonomy of learning biology , Inquiry and cooperation, to develop students to explore the spirit of cooperation, which requires the implementation of hierarchical teaching process, the design team to cooperate in the overall optimization of classroom teaching, so that each student fully developed.