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细胞是生物体结构和功能的基本单位,生命活动是建立在细胞的基础之上的。因此,有关细胞的知识是高中生物学的基础,教师在课前预设上应该格外重视。本文针对目前高中教师在“细胞”教学预设中存在的问题,提出了相应的对策,以期引发教师们的积极思考,并为更好地进行教学预设提供借鉴。一、目前“细胞”教学预设中存在的问题1.缺乏初中相关知识的回顾初中生物知识在初二已经基本讲授结束,而高中生物大部分要到高二才开设,间隔时间较长,导致学生
Cell is the basic unit of structure and function of living body, and life activity is based on cell. Therefore, the knowledge about cells is the basis of high school biology, teachers should pay special attention to pre-class. In this paper, the current high school teachers in the “cell ” teaching pre-existing problems, put forward corresponding countermeasures, in order to trigger positive thinking of teachers, and to provide better reference for teaching purposes. First, the current “cell ” teaching problems in the pre-existing 1 lack of knowledge of junior high school review junior high school biology knowledge in the second two years of basic teaching has ended, while most of the high school biology to high school was opened only a long time interval , Lead to students