課程目標 Lesson objective: 

1. 藉由不同的實物操作讓學生理解電池電力產生的原因。

2. 學生能藉由實驗了解電池的原理並學習課程相關字彙。

3. 學生學習課程相關段落文章，並進行口語評量。

課程任務 Lesson Assignment:

1. 1st period:  Teach how batteries work and label a diagram showing the basic idea. Explain the experiment for the next class. Present the assessment paragraphs.

2.  2nd period: Make an LED light turn on using pencil graphite and draw a diagram of it. Label it to show the relation to the class one diagram. Review their assessment paragraphs.

3.  3rd period: Assessment Day. Present the paragraph and show understanding of a battery. 

4. Vocabulary: electrons, positive, negative, chemical, battery, current 

5. Paragraph present: 

A __________(battery) is a kind of container that stores __________(energy). There are __________(positive) and __________(negative) sides. ___________(Electrons) move from the __________(negative) to the __________(positive) side. As they move, the ___________(energy) they make is used to do a job.