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一、化学实验教学培养了学生的观察能力,也提高了学生学习的兴趣观察是认识的窗口,是思维的前提,对于事物,如果没有敏锐而细致的观察,就不能深入认识事物的本质。在化学实验中,要教给学生观察的方法,如观察要有明确的目的和重点,要自始至终,从明显的到细微的都必须认真地、细致地观察,要提醒学生注意排除其他因素的干扰,要求学生实事求是地做好实验记录。在实验前,要求学生观察药品状态、仪器形状、连接方法。实验中引导学生观察反应中产生的多种现象,特别注意引导学生对实验现象要作全面观察,及时纠正学生的片面性。例如:
First, the chemistry experiment teaching has trained the students ’observation ability and also increased students’ interest in learning. Observation is the window of understanding and the prerequisite of thinking. If there is no sharp and meticulous observation, the essence of things can not be deeply understood. In chemical experiments, students should be taught to observe the method, such as observation must have a clear purpose and focus, from start to finish, from obvious to subtle must be carefully and carefully observed, to remind students to rule out the interference of other factors , Require students to make factual records of experiments. Before the experiment, students are required to observe the state of the drug, the shape of the instrument and the method of connection. In the experiment, students are guided to observe a variety of phenomena arising from the reaction. Special attention should be given to guiding the students to make a comprehensive observation of the experimental phenomena and promptly correct the one-sidedness of the students. E.g: