在课堂教学中,教师应抓住机会不失时机地培养学生的思维能力。数的大小比较中,分数是很重要的一环,尤其是异分母分数的大小比较,更是其中的重点和难点。教学时可以采取多种方法,启发学生思维。1.常规方法,也就是把异分母分数先通分,化成同分母分数,再比大小。例如:37=2637,95=6 In classroom teaching, teachers should seize the opportunity to cultivate students' thinking ability. The size of the number of comparison, the score is a very important part, especially the size of different denominator, it is more important and difficult point. Teaching can take a variety of ways to inspire students thinking. 1 conventional method, that is, the first pass the different denominator points, into the same denominator fraction, and then size. For example: 37 = 2637,95 = 6