“平行四边形面积”教学设计

• 作 者: 许兰贞
• 机 构: 山东省东营市垦利县郝家镇中心小学,
• 出 处: 新课程(小学)
• 发表日期: 2015年05期

【教学内容】人教版小学数学教材五年级上册第87~88页例1及相关练习。【教学目标】1.经历探索平行四边形面积的计算方法,理解应用“转化”的数学思想方法,推导平行四边形的面积计算公式,会计算平行四边形的面积。2.让学生经历观察、操作、讨论、分析、比较、归纳等学习活动过程,获得积极的数学学习体验,从而发展学生的空间观念,提高学生的数学素养。【教学重点、难点】应用“转化”的思想方法,探究平行四边形的面积计算公式。充

【Teaching content】 PEP Teaching in Primary 5 grade 87 ~ 88 Example 1 and related exercises. 【Teaching Objectives】 1. To explore the method of calculating the area of ​​parallelogram, understand the mathematical method of applying “transformation”, derive the area calculation formula of parallelogram, calculate the area of ​​parallelogram. 2. Let students experience observation, operation, discussion, analysis, comparison, induction and other learning activities, to obtain a positive mathematical learning experience, so as to develop the students’ space concept and improve their mathematical literacy. Teaching emphasis, difficult application of “conversion ” method of thinking, to explore the area of ​​the parallelogram formula. Charge