化学实验是化学学科的基础和发展源泉,也是学生获得感性认识,进而学习化学知识的重要手段。这就需要学生根据具体实验目的,认真观察实验现象,得出科学结论,然而,历年来学生分组实验成功率不够理想。这就是阻碍学生学习化学的 Chemical experiments are the basis and source of development of chemistry disciplines, and also an important means for students to acquire perceptual knowledge and then learn chemical knowledge. This requires students to carefully observe the experimental phenomena and draw scientific conclusions based on the specific experimental purposes. However, the success rate of student grouping experiments over the years has not been ideal. This is what prevents students from learning chemistry