What is Electricity? - LP

Electricity has been one of the major asset of human civilization. Electricity is the physical flow of electrons also referred to as an electric current. It exist in the nature; however, it took many years before human fully understood its immense power and its nature.

In this lesson, students will learn the fundamental nature of electricity and how it works. The students will also learn the Ohm's Law and lastly the application of electricity.

GRADE LEVEL: 9 - 10

SUGGESTED TIME: two class periods

MATERIALS:

• five lamps
• five 9V batteries
• five knife switch
• connective wire with alligator clips
• lab worksheet

ONLINE RESOURCES:

The teacher may download the files ahead of time in case of a slow internet connection.

Video No. 1

DOWNLOAD

Video No. 2

DOWNLOAD

OBJECTIVES:

Given various activities, the students, will be able to:
a. Define what electricity is.
b. Identify the parts of an atom
c. Name the critical part of the atom responsible for electricity
d. Build a simple circuit

PROCEDURE:

1. Motivation:

• Play the video #1 of on-line resources in the class. After watching the video, ask the students these follow-up questions;

"What have you seen in the video?"

"How do you feel upon watching the lightning strike the tree?"

(The teacher may ask follow-up questions based from the answers of the students. The idea is to let the students talk about the video)

• After describing and talking about the video, ask the students this topic question:

"What is electricity?"

2. Lesson Proper:

•  The teacher should discuss general overview about electricity starting with the structure of the atom and its relationship about electricity.
• Play the video #2 of the on-line resources materials and distribute the lab worksheets.
• The students should fill-up the blanks in the worksheet.
• After watching the video and filling up the lab worksheets, the teacher may proceed with the lesson's input. (The teacher should assess students' answer in the lab worksheet by integrating it in the discussion. Answering questions on the fly). Introduce the concept of Ohm's Law in this part as well. Discuss the formula of Ohm's law in finding the voltage, current and resistance.
• This time the class will be divided into 4-5 groups each group having 5 members to maximize participation among the members.
• Distribute the materials in the lab activity together with the circuit worksheet (circuit experiment).
• The students will be given 10-15 minutes to perform the procedure and answer the questions in the circuit worksheet.

(OPTIONAL - SECOND PERIOD)

3. Follow-up Activity

• Task the students to present their findings during the lab activity by tabulating the result and assigning someone to discuss it in the class. 
• Give a general summary of the lesson and ask the students for any queries or clarification.
• After that, conduct a formative quiz to check the extent of students' understanding of the lesson.