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教完了人教版2013年审定的四年级《数学》上册之后,有几处疑惑,现整理如下:1.点哪儿去了。在教学生画角一课时,教材43页总结了画角的三个步骤,我也是按这三个步骤一步步地讲解示范。当我走下去巡视指导时,大多数学生能按三个步骤正确地画出了指定度数的角,少数学生在找60°的刻度线时出现了错误,分不清应该找外圈的60°,还是找内圈的60°,这是学生在初学画角时的通病,我对他们进行
After teaching the People’s Education Edition in 2013 approved the fourth grade “Mathematics” on the volume, there are several doubts, is now organized as follows: 1. When teaching a lesson, a 43-page textbook summarizes the three steps of painting, and I also explain the demonstration step-by-step through these three steps. When I walked down to inspect the guide, most of the students were able to correctly draw the specified degree of angle in three steps. A small number of students made a mistake while looking for the 60 ° tick mark. They could not find the 60 ° of the outer ring , Or find the inner circle of 60 °, which is a common problem in the beginning of drawing angle, I conducted on them