苏教版科学六上《能量的转换》中安排了这样一个实验:点燃花生米给烧杯中的水加热。在备课时我对教材中提供的材料也没有多想,课前就为学生准备了教材中所提示的材料:插在缝衣针上的一粒生花生米、烧杯、水、火柴、铁架台、温度计。然而在学生实验时问题出现了——花生米怎么也点不着。接下来课堂秩序可想而知,这节课以失败告终。 An experiment was arranged in the “Conversion of Energy” in Suprao Science Science VI: Igniting peanuts to heat the water in the beaker. During the lesson preparation, I did not think much about the materials provided in the textbooks. I prepared the materials for the students before class: a piece of peanut, a beaker, a water, a match, an iron stand on a sewing needle ,thermometer. However, the problem arose when the students experimented - how peanuts could not be counted. The next order of the classroom can be imagined, this lesson ended in failure.