一、故事引导,激发兴趣如教学《长方形的周长》一课时,我运用多媒体出示龟兔赛跑的画面,然后配合启发谈话:“今天老师给同学们讲一个童话故事《龟兔再次赛跑》。比赛马上就要开始了,裁判员小猴正在宣布比赛路线,请运动员乌龟沿着长方形草坪跑一圈。小猴刚说完,小兔大声嚷道:这不公平,我跑的路程比乌龟长。小兔跑的路程是不是比乌龟的长呢?小猴搞不清楚了。同学们有办法吗?”这一导入不仅符合学生爱听童话故事的特点,而且能使学生产生愉悦的心态,诱发学生感情行为上的参与意识,强烈的学习欲望油然而生。二、及时反馈和矫正,稳定学习兴趣 First, the story guide, to stimulate interest, such as teaching “perimeter of the rectangle,” a lesson, I use the multimedia show tortoises and rabbits racing screen, and then inspired conversation: “Today, the teacher told the students a fairy tale” The match is about to begin, and the referee monkey is announcing the race, asking the athlete tortoise to run around the rectangular lawn. As soon as the monkey finishes speaking, the rabbit shouted: This is not fair. Long rabbit running distance is not longer than the tortoise? Monkey out of the woods. The students have a way to do? "This import is not only consistent with the characteristics of students love to listen to fairy tales, but also to make students happy Mentality, induce students to participate in the emotional awareness of behavior, strong desire to learn spontaneously. Second, timely feedback and correction, and stable interest in learning