1　培养学生的观察能力在实验教学中应有意识地培养学生的观察能力。引导学生由整体到部分或部分到整体 ,由表及里 ,由略到详 ,有顺序的观察事物。例如 :在教学《溶解》这一课时 ,我首先出示两杯水 ,并告诉学生一杯是食盐水 ,一杯是糖水。接者问 :你能分辨这两杯水吗 ?怎样才能 1 Cultivate students’ observation ability In the experimental teaching, students should be consciously cultivated their observation ability. Guide students from the whole to the part or part to the whole, from the table and the inside, from the details to the order, observe things in order. For example: In teaching “dissolve” this class, I first show two glasses of water, and told students that a cup of salt water, a cup of sugar water. The respondent asked: Can you distinguish between the two glasses of water? How can