论文部分内容阅读
教学内容:六年制《数学》第五册P.69-70。教学目标:1.认知目标:理解长方形周长的概念,掌握长方形周长的计算公式,能够计算长方形的周长。2.能力目标:培养学生的比较、抽象概括能力。教具准备:长方形框架一个,彩绳一根,长方形周长抽拉复合片,“小白免找家”游戏投影片一组。教学过程:一、复习铺垫温故孕新1.教师出示一个长方形框架,问:这是什么形?较长的边叫什么?较短的边叫什么?一个长方形有几条长?几条宽?两条长的关系怎样?两条宽呢?2.幻灯打出标有长和宽数值的长方形。提问:两条长的和是多少?两条10厘米
Teaching Content: Six-year “Mathematics” Fifth Volume P.69-70. Teaching objectives: 1. Cognitive goal: to understand the concept of rectangular perimeter, grasp the formula of the perimeter of the rectangle, the perimeter of the rectangle can be calculated. 2.Capacity goals: to develop students more abstract abstract abilities. Teaching aids to prepare: a rectangular frame, a color rope, rectangular perimeter drawing compound, “white free home ” a set of game cast. Teaching process: First, the review of bedding temperature pregnant new 1. Teachers to produce a rectangular frame and asked: What is the shape? What is the longer side called? What is the shorter side called? What's the relationship between the two long? Two wide? 2. Slide the rectangle marked with long and wide values. Question: What is the length of two? Two 10 cm