几年来,通过学习现代教学理论以及兄弟学校的教改经验,我们在生物课中进行了“四环节单元教学法”的探索并取得了初步成效.所谓“四环节单元教学法”即将高中生物教材中具有一定独立性的知识,分为大小十六个单元,不论单元大小都安排有四个基本环节:(1)学生自学;(2)启发讲解;(3)复习练习;(4)单元小结.每个单元的教学时数,由具体情况而定.现以“减数分裂和生殖细胞的成熟”一单元为例说明如下. In recent years, through the study of modern teaching theory and the experience of teaching reform in fraternal schools, we explored the “four-link unit teaching method” in biology classes and achieved initial success. The so-called “four-link unit teaching method” There is a certain degree of independence of knowledge, divided into sixteen size units, regardless of unit size are arranged with four basic steps: (1) students self-study; (2) to explain; (3) review exercises; The number of hours of instruction per unit depends on the circumstances and is illustrated below by a unit of “meiosis and germ cell maturation”.