在教学过程中,教师常常会发现有些内容学生理解起来比较困难。数学理解的产生,需要在反复体验的过程中不断积累经验和丰富表象。课堂教学有时因时空的限制而导致体验过程不够充分,为此,可以在课前组织以具体体验为主要方式、以充实对数学内容的感性认识为目标的数学活动,以前体验活动的方式为课堂教学做好铺垫和准备。 In the teaching process, teachers often find that some students are more difficult to understand. The generation of mathematical understanding needs to accumulate experience and rich appearance in the process of repeated experience. Classroom teaching is sometimes not sufficient due to the limitation of time and space. Therefore, we can organize the specific experience as the main way before class to enrich the mathematics activities that aim at the perceptual knowledge of mathematics content. The former way of experiencing activities is classroom Teaching to prepare and prepare.