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化学是一门以实验为基础的学科,化学实验不仅是中学化学的基础,也是引发学习兴趣,使学生主动获取知识,发展能力,提高科学素质的基本途径。实验是一个非常好的教学手段,它可以提高学生学化学的兴趣,培养动手能力。但目前在学生实验方面主要存在以下问题:学生在实验课堂中面对的是枯燥的公式、概念,这些公式及概念导致学生难于理解,致使部分学生对难于理解的课程失去学习信心和兴趣,也就谈不上对学生综合能力的培养。对于一些操作过程复杂的实验,许多学生总是做到某一步,后面的操
Chemistry is an experiment-based discipline. Chemistry experiments are not only the basis of chemistry in middle schools, but also the basic way to stimulate interest in learning, make students initiatively acquire knowledge, develop abilities, and improve scientific quality. Experiment is a very good teaching method, which can improve students’ interest in chemistry and cultivate practical ability. However, there are mainly following problems in the experiment of students at present: The students are confronted with boring formulas and concepts in the experimental class, which make students difficult to understand. As a result, some students lose their confidence and interest in learning hard to understand. There is no way to raise students’ overall abilities. For some experiments complicated operation, many students always do one step, behind the operation