基本概念在高中生物知识中所占的比例是相当大的。现行高中生物必修本中的基本概念共有170多个,平均每课时有两个。在会考手册中,基本概念占知识条目的百分之三十七点七。学生对基本概念的掌握程度直接影响到生物学知识的全面掌握和灵活应用。由此可见基本概念教学的重要性。 本人在概念教学的方法上,进行了三年改革试验,总结出概念教学的三步教学法──单独教学,分组教学和系统教学。现对此简介如下,供同行参考。 一、单独教学 单独教学是概念教学的第一步。所谓单独教学就是指在每次讲新概念时,要把这个概念的内涵（本质）和外延（注意点）讲解清楚,使学生对这个概念全面理解掌握,避免出现一知半解的现象,做到基本概念个个过关。具体 The basic concept of high school biology knowledge is a very large proportion. There are more than 170 basic concepts in the current High School Biology Essentials, with an average of two per lesson. In the handbook, the basic concepts accounted for 37.7 percent of the knowledge items. Students’ mastery of basic concepts directly affects the overall mastery and flexible application of biological knowledge. This shows the importance of teaching basic concepts. I conducted a three-year reform experiment on the method of conceptual teaching, summing up the three-step teaching method of concept teaching—separate teaching, group teaching and systematic teaching. This brief introduction is as follows for reference by peers. First, separate teaching Individual teaching is the first step in concept teaching. The so-called individual instruction means that each time a new concept is introduced, the concept (essence) and extension (attention points) of the concept must be explained clearly so that students can fully understand and master the concept, avoiding the phenomenon of being ignorant and achieving the basic concept. All through. specific