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自然常识教学活动的主体是学生,在教学中发挥学生的主体作用,让他们主动参与整个教学过程,是影响教学成败的关键。因为,学生学习的主动性具体表现为学生对学习对象的兴趣和对它进行探索的积极性。所以,教师必须根据每堂课的教学内容,精心设计教学过程,使教学结构、教学方法、教学手段最优化,只有这样,才能激发学生的学习兴趣和探索的积极性。三年级《磁力的大小》一课,重点是让学生认识到磁铁备部分的磁力大小不一样。这首先要有“磁力”的
The main body of natural sense teaching activities is students, play the main role of students in teaching, so that they take the initiative to participate in the entire teaching process is the key to teaching success or failure. Because, the initiative of student learning is embodied in the students' interest in learning objects and their enthusiasm to explore. Therefore, teachers must carefully design the teaching process according to the teaching content of each class, optimize the teaching structure, teaching methods and teaching methods, and only in this way can arouse students' interest in learning and exploring enthusiasm. The third grade “magnetic force size” a lesson, the focus is to enable students to recognize the magnet part of the magnetic force is not the same size. This must first have “magnetic”