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在现行中师生物课本中,“节肢动物”一章篇幅多,内容丰富,比初中动物课本增加了昆虫纲分目及检索表等知识。“节肢动物”是动物学的重点章节,教学大纲规定要用15节课的时间完成这章的教学任务。为了使学生通过“节肢动物”一章的学习,能对整章知识加以整理、提高和系统化,归纳出节肢动物门各纲的主要特征,进一步掌握一般昆虫分类知识及其与人类的关系,从而懂得消灭害虫的方法,我在教学计划中特地安排了一节“节肢动物门”的小结课。具体做法如下:
In the current Biology textbooks of secondary teachers, the “arthropods” chapter has many chapters and rich contents. It has added knowledge of insects, sub-categories, and retrieval forms compared to junior high school animal textbooks. “Arthropods” are the key chapters of zoology. The syllabus stipulates that it takes 15 lessons to complete the teaching tasks of this chapter. In order to enable students to learn through the “arthropods” chapter, they can organize, improve and systemize the entire chapter of knowledge, sum up the main features of the arthropod gates, and further grasp the general knowledge of insect classification and its relationship with humans. In order to understand how to eliminate pests, I specially arranged a “arthropod gate” class in the teaching plan. The specific approach is as follows: