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《数学课程标准》中关于“操作”有这样一句话:数学学习是重要的智力活动,需要学生动手操作获得直接经验。动手操作是学生探索数与计算知识的有效方式,操作在小学数学教学特别是低中年级计算教学中起着非常重要的作用。然而,在实际教学中,有的教师并没有重视操作活动,或者把操作当成激发学生兴趣的一项活动,可有可无,操作已成为鸡肋。下面就以本校一位青年教师在计算教学磨课活动中两次执教“两位数除以一位数”为例,谈谈操作在计算教学中的作用。
The “Mathematics Curriculum Standards” on “operation ” There is a saying: Mathematics learning is an important intellectual activity, need students to get direct experience. Hands-on operation is an effective way for students to explore and calculate knowledge. Operation plays a very important role in elementary mathematics teaching, especially in lower-middle-grade teaching. However, in actual teaching, some teachers do not attach importance to operational activities, or use the operation as an activity to stimulate students’ interest. It is dispensable and operation has become a weak point. The following is a young teacher in the school teaching activities in the calculation of teaching two coaching “double digits divided by a single ” as an example, talk about the role of operation in the calculation of teaching.