在现在的中学教学形式下,立足教材,开展开放式实验教学不失为一种真正有效落实新课程教学理念的教学方式。教材上的许多实验都是开展这种教学活动的良好素材。 Under the current middle school teaching mode, based on the teaching materials, carrying out the open experimental teaching can be regarded as a teaching method that truly and effectively implements the teaching concept of the new curriculum. Many experiments in textbooks are good sources for this kind of teaching activity.