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实验是化学教学的基本内容之一,重视和加强实验,不能只满足于实验是否做成功,还要着眼于培养学生观察、思维、分析、综合等能力。通过最近有机化学的教学,就培养学生能力问题,谈谈我们的做法与体会。一、指导观察实验现象感知是接受知识的开始。通过实验,学生可以观察到许多鲜明的现象,获得丰富的感性认识,然而仅仅要求学生一般地观察是不够的,应该引导学生进行有目的、有选择的观察,以便把握住现象的本质。例如石蜡的催化裂化实验分催化裂化,部分裂化气冷凝,气态烃通入高锰酸钾溶液三个部分,需
Experiment is one of the basic contents of chemistry teaching. Emphasis and experiment should not only be satisfied with the success of the experiment, but also focus on the ability of students to observe, think, analyze and synthesize. Through the recent teaching of organic chemistry, to cultivate students' ability, talk about our practices and experiences. First, to guide the observation of the phenomenon of perception is to accept the beginning of knowledge. Through experiments, students can observe many sharp phenomena and get rich perceptual knowledge. However, it is not enough to require students to observe in general. Students should be guided with purposeful and selective observation in order to grasp the essence of the phenomenon. For example, the catalytic cracking of paraffin catalytic cracking, partial cracking gas condensation, gaseous hydrocarbons into the three parts of potassium permanganate solution