中师新教学方案要求将原先单一的必修课逐步由四大块的新模式所取代。其中的选修课及课外活动应开设哪些内容，达到什么目的，采取怎样的形式，这是贯彻落实新方案中，每一个中师化学教师都在探索的问题。笔者通过几年来中师化学教学实践以及曾开设“实用化学”和组织课外... The new teaching plan of the Central Normal University requires that the original single required course be gradually replaced by four new models. Which of the elective courses and extra-curricular activities should be set up, what purpose to achieve, and what form to take, which is the problem that every middle school chemistry teacher is exploring in implementing the new program. The author has practiced the teaching practice of chemistry in middle school for a few years and has established “practical chemistry” and organized extracurricular activities...