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在化学教学中如何培养学生学习兴趣,在当前化学教学改革中如何调动学生的学习积极性,是值得探索的课题之一,下面谈谈我的一些尝试。第一,充分发挥实验的魅力。化学是一门以实验为基础的科学,化学实验是化学学科的最大特点。那么怎样充分发挥实验魅力,用实验激发浓厚的兴趣,燃起求知的火花呢? 1.确保实验现象的明显性。化学实验对,学生情绪高涨,思想活跃,注意力特别集中,学生处在最佳情绪状态。如果实验现象不明显,会严重挫伤学生学习积极性,所以对于教材规定的实验不仅要做全,还必须做好,使实验现象明显。如乙酸乙酯水解的实验,闻味法不易比较分辨,可改进为用甲基红把酯染成红色根据酯层体积判断酯在不同条件下水解程度,可使现象更明显。
How to cultivate students’ interest in chemistry teaching and how to mobilize students’ enthusiasm for learning in the current chemistry teaching reform is one of the topics worth exploring. Let’s talk about some of my attempts. First, give full play to the charm of the experiment. Chemistry is an experiment-based science, and chemistry experiments are the biggest feature of chemistry. Then how to give full play to the charisma of the experiment and use the experiment to stimulate a strong interest and spark the spark of seeking knowledge? 1. To ensure the obviousness of the experimental phenomenon. In chemical experiments, students have high emotions, active thoughts, and focused attention. Students are in the best emotional state. If the experimental phenomenon is not obvious, it will seriously dampen students’ enthusiasm for learning. Therefore, the experiment prescribed by the teaching materials must not only be complete, but must also be done well so that the experimental phenomenon is obvious. For example, the ethyl acetate hydrolysis test, smelling method is not easy to compare, can be modified to use methyl red to ester dyed red ester ester under different conditions to judge the volume of hydrolysis under different conditions, can make the phenomenon more obvious.