加德纳教授十分重视化学实验教学。她认为,学生在学习化学这门课程时,应有50％的时间进行化学实验。在美国一些学校里,过去一学期只有5—10次实验,而现在则有30—40次实验。她说,学生通过实验,不仅要学习化学知识、培养思维能力、掌握操作技能,还要从中学会怎样成为一名化学家。怎样进行实验教学才能达到这个要求呢?我们可以从她所介绍的一些具体实例中得到启发。 1.用蜡烛燃烧的实验培养学生的观 Professor Gardner attaches great importance to chemistry experiment teaching. She believes that students should spend 50% of their time doing chemistry experiments while studying chemistry. In some schools in the United States, there were only 5 to 10 experiments in the past semester, but now there are 30 to 40 experiments. She said that through experiments, students should not only learn chemical knowledge, develop thinking skills, master operating skills, but also learn how to become a chemist. How can we carry out experimental teaching to meet this requirement? We can be inspired by some specific examples she has introduced. 1. The concept of using candle burning to train students