“电路”单元试教分析

Analysis of Trial Teaching of “Circuit” Unit

"电路"单元借助导线、灯泡、电池等电器元件和许多有趣的探究活动,帮助学生建构电路概念:知道电路是包括电源在内的闭合回路,电路的通断可以被控制;有的材料容易导电,而有的材料不容易导电;电是重要的能源,但有时也具有危害性,知道安全用电的常识。试教后发现,整个单元结构缜密,探究活动丰富,具有较强的逻辑性。教材这样设计,既让学生有一个愉快的学习经历,又为他们的终身学习和发展奠定了基础。

With the help of wires,bulbs,batteries and other electrical components and many interesting inquiry activities,the"circuit"unit helps students construct the concept of circuit:knowing that the circuit is a closed circuit including power supply,and the on-off of the circuit can be controlled;Some materials conduct electricity easily,while others do not;Electricity is an important energy source,but sometimes it is also harmful.We should know the common sense of safe use of electricity.After the trial teaching,it is found that the whole unit structure is meticulous,the inquiry activities are rich,and it has strong logic.This design of teaching materials not only makes students have a pleasant learning experience,but also lays a foundation for their lifelong learning and development.