是否突出了教学重点,是评价一堂课教学有效性的依据之一。如何才能在课堂教学中做到突出教学重点,结合例子,我谈谈自己的看法。在一次关于等腰三角形的数学活动中,一位老师这么实施:先发给学生几张不相同的长方形纸条,要求学生将其中最宽的按教材要求折叠,裁剪并展开。在裁剪时,由于老师的规定,学生只能剪出一个等腰的锐角三角形与一个等腰的钝角三角形。并以此为基础,老师引导学生得出等腰三角形的定义与分类,并重述有关概念。活动花了二十多分钟,以至 Whether to highlight the teaching focus is to evaluate the validity of a course of teaching one of the bases. How to highlight the teaching focus in the classroom teaching, with examples, I talk about my own views. In a mathematical activity on the isosceles triangle, a teacher put it this way: sending students a few different rectangular strips of paper, asking them to fold, cut, and unfold one of the widest textbooks required. At the time of cutting, due to the teacher’s requirement, the student can only cut out an isosceles triangle with an isosceles triangle. Based on this, the teacher guides the student to derive the definition and classification of isosceles triangles and recapitulates the concept. Activities took more than twenty minutes, as well