目的,在教材编排上,对小数要不要分段教学,还存在不同的意见:有的主张集中一次讲,可以节省教学时间;有的主张分开讲,使学生容易理解和掌握。我认为,观行教材把小数分成两个阶段教学,是符合学生的年龄特征和认识规律的。一方面,小数在日常生活中要经常用到,特别是商品的标价通常是以“元”作单位的小数来表示,让小学生早一点接触到小数,便于他们能解决日常生活中一些简单的实际问 Purpose, in the textbook arrangement, the fractional or not to teach, there are still different opinions: Some advocates focused on a time, you can save teaching time; Some advocate separately, so that students can easily understand and master. In my opinion, the concept of teaching materials to decimals divided into two stages of teaching, is consistent with the age characteristics of students and the laws of understanding. On the one hand, decimals are often used in daily life. In particular, the price of a commodity is usually expressed in decimals of “yuan”, so pupils come into contact with decimals earlier so that they can solve some simple realities in daily life ask