1、.广州城建职业学院课程单元设计（威尼斯人网址首页）课题（项目）linear circuit analysis授课时间年 月 日星期第 节课类/课序 理论 / 第6次课授课地点班级/小组10移动通信单元学时2能力（技能）目标：let students know how to expression： kirchhoff s current law，voltage law andwhy the sinusoid is an extremely important function? 知识目标：1) what is kirchhoff s current law?2) what is kirchhoff s vo
2、ltage law?3) why the sinusoid is an extremely important function? 能力训练任务及案例：英语朗读以及回答问题。案例:欧姆定律说明教学重点、难点与解决办法：重点：基尔霍夫电流、电压定律难点：电路分析法解决方法：用以前学过的专业知识来引导学生教学过程设计思路：1、介绍本次课的知识目标与能力目标2、提出要求学生回答的问题3、听力训练回答问题4、讲解重点内容，学生朗读5、完成课后作业6、总结优化程序参考资料与设备、工具和材料的配置：multimedia teaching课程单元设计（续页）教学内容（训练项目）设计教学方法与手段设计学生活动
3、（训练任务）设计时间分配（分钟）reviewknowledge goal and ability goal listening and answer question curriculum content1 ohms law2kirchhoffs current law 3 kvl4 sinusoidal circuits6 summarymultimedia teach demonstrate discussionanswer question listeninglistening and answer question listening and answer question re
4、adingsuppose that some material is connected to the terminals of an ideal voltage source u(t) as shown in fig 6.2.suppose that u(t)=1v， then the electric potential at the top of the material is 1v above the potential at the bottom. since an electron has a negative charge, electrons in the material w
5、ill tend to flow from bottom to top. therefore, we say that a current tends to go from top to bottom through the material. listening and answer question readingwe now present the first of kirchhoffs two laws, his current law (kcl), which is essentially the law of conservation of electric charge:list
6、ening and answer question readingwe now present the second of kirchhoffs laws- the voltage law. to do this, we must introduce the concept of a loop. starting at any node in a circuit, we form a loop by traversing through elements and returning to the starting node, and never encountering any other n
7、ode more than once (fig 6.4). listening and answer question readingstep and impulse functions are useful in determining the responses of circuits when they are first turned on or when sudden or irregular changes occur in the input. this is called transient analysis. however, to see how a circuit res
8、ponds to a regular or repetitive input-the steady-state analysis - function that is by far the most useful is the sinusoid. 5315151312125课后作业布置：translation: for a given circuit, a connection of two or more elements shall be called a node (fig 6.3). at any node of a circuit, at every instant of time, the sum of the currents into the node is equal to the sum of the currents out of the node. 教学效果评价与改进措施：检查评价： 检查人： 年 月 日;.