随着教育体制改革的不断深入,实验在教学中所占的比重越来越大,然而,不论做学生实验还是做演示实验,都会发生实验失败或达不到应有效果的现象,这就有待于实验员、教师去挖掘,去探索,对实验进行改进,使教学仪器发挥最大作用,实验达到最佳效果。为了充分发挥科学实验的多种功能和作用,以最小的误差,得出实验结论,教师要不断深入研究和勇于创新,减 With the continuous deepening of the reform of the education system, the proportion of experiments in teaching is increasing. However, regardless of whether student experiments or demonstration experiments are conducted, failure of experiments or failure to achieve desired results will occur. For the experimenters and teachers to explore, to explore, to improve the experiment, so that the teaching instrument to play the biggest role, the experiment to achieve the best results. In order to give full play to the multiple functions and effects of scientific experiments, the experimental conclusions are drawn with the smallest possible errors. Teachers must continuously research and innovate courageously to make innovations.