论文部分内容阅读
教学目标:1.在理解的基础上掌握平行四边形的面积计算公式,能正确地计算平行四边形的面积;2.通过操作、观察、比较,发展学生的空间观念,渗透转化的思想方法,培养学生的分析、综合、抽象、概括和解决实际问题的能力。教学重点:掌握平行四边形的面积计算公式,并能正确运用。教学难点:平行四边形面积计算公式的推导。教学过程:一、导入(出示一个平行四边形。)师:关于平行四边形你都知道哪些知识?生:平行四边形具有不稳定性。
Teaching objectives: 1. On the basis of understanding grasp the area of parallelogram formula, can correctly calculate the area of parallelogram; 2. Through the operation, observation, comparison, development of students’ concept of space, the idea of infiltration transformation, training students The ability to analyze, synthesize, abstract, summarize, and solve practical problems. Teaching focus: master the area of the parallelogram formula, and correct use. Difficult point of teaching: the derivation of parallelogram area calculation formula. Teaching process: First, import (produce a parallelogram.) Teacher: What do you know about parallelograms? Students: parallelogram instability.