新课标指出:有效的数学学习活动不能单纯地依赖模仿与记忆,动手实践、自主探索与合作交流是学生学习数学的重要方式。教学设计中教师创造机会,让学生多种感官参与学习,把学生推到主体地位,让学生获得丰富感性认识,使抽象知识具体化、形象化。一、打通数学与生活的联系数学来源于生活实际,也应用于生活实际,平行四边形在实际生活中有着广泛的应用。因此本节课的教学以“实际生活”为突破口。在引入课题时,让学生 The new curriculum standard pointed out: Effective mathematics learning activities can not simply rely on imitation and memory, hands-on practice, independent exploration and cooperation and exchange is an important way for students to learn mathematics. Teachers in instructional design create opportunities for students to participate in various senses, push their students to the dominant position, enable students to gain a wealth of perceptual knowledge, and abstract and visualize abstract knowledge. First, to open the connection between mathematics and life Mathematics comes from the actual life, but also applied to the reality of life, parallelogram has a wide range of applications in real life. Therefore, the teaching of this lesson to “real life ” as a breakthrough. When introducing a topic, let the students