化学课堂教学系统是一个复杂系统,无论怎样精心预设,总免不了出现意外。笔者在教学实践中采取相应意外应对策略,使充满“意外”的课堂创造出了意外的精彩。通过反思,更加明白教学是一门实践的艺术。这门艺术需要理论的指导,但更需要在理论指导下的实践磨砺。 Chemistry classroom teaching system is a complex system, no matter how carefully preset, the inevitable accident. The author adopts corresponding accidental coping strategies in teaching practice so that the classroom filled with “Accident ” has created an unexpected wonderfulness. Through reflection, more understand that teaching is a practical art. This art needs the guidance of the theory, but more needs the practice under the guidance of theory.