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一、问题的提出自然学科课堂教学中经常进行观察与实验活动,学生在观察与实验活动中,不但能获得知识,而且能培养观察与操作能力。《自然教学大纲》中明确指出:“教师要指导儿童自己进行观察和实验,通过观察和实验获得知识和能力。”组织学生的观察与实验活动大体有三种情况:一是老师为学生准备有结构的材料,讲清观察与实验的目的要求,再让学生自行探究;二是老师带着学生一步一步地观察与实验,老师讲一步学生做一步;三是在观察与实验前老师讲清观察与操作的步骤,并作演示,然后让学生按老师讲的做。以上三种方法各有千秋,无论采用何种方法,在
First, the question raised Natural subject classroom teaching often observation and experimental activities, students in observation and experiment activities, not only to gain knowledge, but also to develop observation and operational skills. “Nature Syllabus” clearly states: “Teachers should guide children to observe and experiment on their own, through observation and experiment to acquire knowledge and ability.” There are basically three kinds of observation and experiment activities to organize students: First, teachers prepare students for structure Of the material, to clarify the purpose of observation and experiment requirements, let the students explore on their own; Second, the teacher with the students step by step to observe and experiment, the teacher one step further students make; third observation and experiment before the teacher to clarify the observation and The steps of the operation, and for demonstration, and then let the students talk about the teacher to do. The above three methods have their advantages and disadvantages, no matter what method is adopted