基础教育课程和教学改革提出了“用教材教而不是教教材”的新理念,这就揭示了教师在使用教材过程中的灵活性。化学是一门以实验为基础的学科,化学实验是进行科学探究的重要方式,而演示实验是一种最有效的直观教学。如何灵活运用演示实验完成好新课程理念下的课堂教学,这是每一位化学教师都应当探究的问题。本人在教学 The basic education curriculum and teaching reforms put forward a new concept of “using teaching materials rather than teaching materials”, which reveals the flexibility of teachers in the use of teaching materials. Chemistry is an experiment-based discipline. Chemistry experiments are an important way to conduct scientific inquiry. Demonstration experiments are the most effective and intuitive teaching. How to flexibly use the demonstration experiment to complete the classroom teaching under the new curriculum concept is a question that every chemistry teacher should explore. I am teaching