开展自然学科课外实践活动是自然教学的一个重要组成部分 ,这是因为自然学科其认识对象不是书本知识 ,而是大自然的事物及其发展变化 ,采取的教学方法是指导学生通过亲自观察、实验、考察等活动获取知识和能力。而课堂教学存在着时间、空间等局限 ,不利于学生直接接触自然、观 It is an important part of nature teaching to carry out the activities of extracurricular activities in the natural sciences. This is because natural subjects are not knowledge of books but objects of nature and their development and changes. The teaching methods adopted are to guide students to observe and experiment by themselves , Study and other activities to gain knowledge and ability. However, there are limitations in classroom teaching such as time and space, which are not conducive to students' direct contact with nature.