结合教学举办科普讲座,是在青少年中开展群众性科技活动的一种好形式。科普讲座要把严格的科学性和浓厚的趣味性共溶于一炉;选题要源于教学,高于教学,或以学生的经验为生长点;要着眼于扩大视野,培养兴趣,开发智力。一、结合数、理,化课选题我们开展了以数理化为中心的专题讲座,以加深学生对课堂教学内容的理解,激发他们对科学的热爱。如根据同学们在物理课上学过的有关浮力和万有引力的问题,我们组织了“曹冲称象与第一个称地球的人”的专题讲座。根据付科摆的道理讲述了“我看见了地球自转”,深受同学们欢迎。二、结合语文课本中的科学内容选题 Combining teaching with popular science lectures is a good form of carrying out mass scientific and technological activities among young people. The popular science lectures should have a strict scientific nature and a strong interest in the co-dissolving of a furnace; the topics should be derived from teaching, higher than teaching, or using students’ experience as a growing point; they should focus on expanding their horizons, cultivating interest, and developing intelligence. . 1. Combining Numbers, Theory, and Subject Choices We have carried out lectures focusing on mathematics, chemistry, and chemistry to deepen students’ understanding of classroom teaching content and inspire them to love science. For example, according to the buoyancy and gravitational problems that students learned in physics classes, we organized a special lecture on “Cao Chong’s title and the first person who called the earth”. According to the principle of Fu Ke, I said that “I saw the rotation of the Earth” and was welcomed by the students. Second, combining the scientific content of Chinese textbooks