Republic of the Philippines

CAMARINES NORTE STATE COLLEGE

J. Lukban Extension, Brgy. 2, Daet, Camarines Norte – 4600, Philippines

College of Education

DETAILED LESSON PLAN

TOPIC ELECTRICITY
Sub-topic Electric Charge
GRADE LEVEL 7
TIME ALLOTMENT 3 hours
TEACHER Pierre S. Lalaqui
CONTENT STANDARD
The learners demonstrate an understanding of: charges and the different charging processes.
LEARNING COMPETENCY
The learners should be able to describe the types of charging process and explain the importance of
grounding.
LEARNING RESOURCES
 Google Images
 Science Links (Revised Edition) – Unit 3, Lesson 2, pp 279-286
 Measure static electricity with an electroscope! (2020, April 24). Science Buddies.
https://www.sciencebuddies.org/stem-activities/electroscope
 Sharma, C. (2021, January 19). 8 electrostatic force examples of in daily life.
Studiousguy.com. https://studiousguy.com/electrostatic-force-examples/

CODE
(S7LT-IIIj-13-14)
LEARNING MATERIALS
 Pictures
 PowerPoint Slide Presentation
 YouTube Videos
 Cartolina
 Markers
 Learning activity sheet
OBJECTIVES
At the end of the lesson, students should be able to:
a. Describe the different types of charging process;
b. Explain the importance of grounding; and
c. Connect the electric charge in real life situation.
PREPARATORY ACTIVITIES
Teachers Activity Students Activity

“Good Morning, Class!”

“Good Morning, Sir!”

“Please arrange your chairs and pick up the papers on the

floor.”

“Thank you, please be seated.”

“To check our attendance may I ask the Class President

to report if there is any absent today?”
 Republic of the Philippines
CAMARINES NORTE STATE COLLEGE
J. Lukban Extension, Brgy. 2, Daet, Camarines Norte – 4600, Philippines

College of Education
“Good morning, Sir. I would like to
report that there is no absent today.”

“Thank you, Mr. Mago.”

I. ELICIT

“To begin our new topic, we will have our recapitulation

about the previous lesson.”.

“We will conduct our review in a form of a game called

The Crazy Ball Game”.

“The class will be divided into two teams and choose a

student from one of the team to answer the first
question.”

“If the answer is correct then he/she will throw the ball.”

“The ball has a corresponding point 5, 10, and 15.”

“Sir, what if the ball did not shoot? What

will happen with our points?”

“If the ball did not shoot then you will only get 5 points,
so basically the ball game is just an additional point.”

“Did I answer your question, Ms. Pineda?”

“Yes, Sir. Thank you.”

“The group with the highest score will be the winner”.

“Is that clear?”

“Yes, Sir”

“Okay, you may now proceed with your respective

group.”
 Republic of the Philippines
CAMARINES NORTE STATE COLLEGE
J. Lukban Extension, Brgy. 2, Daet, Camarines Norte – 4600, Philippines

College of Education
II. ENGAGE

“What can you say about the picture?”

“The thing that I observed about the
picture is that, the character produces an
electricity from her hand.”

“That is a good observation Ms. Ordinario.”

“Thank you. Sir.”

“Are you familiar with this character?”

“Sir, I am familiar with that character
since I play Mobile Legend. Her name is
Eudora (mage), she has the power of
producing electricity with high amount of
voltage.”

“Very good, Ms. Baloloy”

III. EXPLORE

“Students, eyes and ears on me.”

“And know we will be having an experiment called

electroscope”
“Sir, what is electroscope?”

“An electroscope is a scientific device that is used to

detect the presence of an electric charge on a body.”

“In this experiment you need to observed that electric

charge.”

“Is that clear, Mr. Aloc?”

“Yes, Sir.”
 Republic of the Philippines
CAMARINES NORTE STATE COLLEGE
J. Lukban Extension, Brgy. 2, Daet, Camarines Norte – 4600, Philippines

College of Education

“I will be providing you a Learning Activity Sheet on

how you are going to conduct this experiment.”

“You need to answer every questions in your answer

sheet and transfer it on a Cartolina Paper.”

“Is there any question?”

“None, Sir.”

IV. EXPLAIN

“For the presentation of your output, each group should

have one or two representative.”

“Each group will be given 5 minutes to present their

work.”

“Okay class, are you now ready with your presentation?”

“Yes Sir, we are ready”

“Presenting you here the rubrics of your presentation.”

 Republic of the Philippines
CAMARINES NORTE STATE COLLEGE
J. Lukban Extension, Brgy. 2, Daet, Camarines Norte – 4600, Philippines

College of Education
V. ELABORATE

“What can you say about the picture? What can you
observe about it?”

“Sir, the socket is overloaded. And the

guy is not careful about plugging the
“Okay, that is right.” male plug.”

“How about the others what can you say about it?”

“Sir, it involved an electricity wherein if

you did not become careful it can harm
“That is correct, Ms. Moreno.” you.”

“To begin with, electricity is a common concept of all

of us. Almost everything we do is dependent on
electricity.”

“Aside from what we know about the applications of

electricity, there are so many things that we need to
learn about its origin and sources.”

“Sir, what is an atom?”

“Okay, to answer your question, Mr. Oblina. Let us

divide by looking at the microscopic world of the
atoms.”
 Republic of the Philippines
CAMARINES NORTE STATE COLLEGE
J. Lukban Extension, Brgy. 2, Daet, Camarines Norte – 4600, Philippines

College of Education
“Atoms contain a nucleus with protons and neutrons
inside, and surronding the nucleus are the moving
electrons. The force that holds the electrons to the
nucleus is called an electrical force. ”

“Sir, what is electrical force and why it

is important?”

“Basically, it is the repulsive or attractive interaction

between any two charged bodies. Without this force,
atoms cannot be formed; therefore, there will be no
molecules and no ‘matter’ will exist.”

“Did I answer your questions, Mr. Martin?”

“Yes, Sir.”

“Moving on. Let us now discuss the Law of Charges.”

“Sir, I can see is that Illustration that like

“And now, what can you see about the picture?”
charges repel and the unlike charges
attract.”

“Very good, Mr. Mago.”

“Fist, when the ball is attracted, that means they carry

opposite charges. Secondly, it is shown that opposite
charges attract each other and same charges repel each
other.”

“Remember that, there are only two types of charges:

positive (+) and negative (-). All electrical phenomena
involve only these two charges.”

“All neutral bodies always contain the same amount of

positive and negative charges.”
“Sir, that means that even though an is
not moving it contains charges?”
 Republic of the Philippines
CAMARINES NORTE STATE COLLEGE
J. Lukban Extension, Brgy. 2, Daet, Camarines Norte – 4600, Philippines

College of Education
“That is correct, Ms. Pura.”

“And uncharge objects can become charge through the

excess or the lack of electrons. Note that electrons are
very mobile outside the nucleus, so they are the ones
that can be lost and gained during the charging process.
If the electrons are added and gained by the material, it
become negatively charged. If the electrons are lost, the
charge become positive.”

“Do you have any other question?”

“None, Sir.”

“After knowing the atom, let us now proceed with

electric charge.”

Electric Charge

“The table shows the summary of electric charge.”

“Sir, what is the use the Coulomb’s
Law?”
“Thank you for asking, Ms. Remoroza.”

“In measuring the electrical force, Coulomb’s law is

used. Coulomb’s law states that the two charged
objects, the forced between these two particles is
directly proportional to the product of their charges.”

Conductors and Insulators

 Republic of the Philippines
CAMARINES NORTE STATE COLLEGE
J. Lukban Extension, Brgy. 2, Daet, Camarines Norte – 4600, Philippines

College of Education

“Do you have any ideas about insulators?”

“Sir, as far as I know insulators are

materials which does not easily allow
heat and/or electricity to pass through
it.”

“That is correct, Mr. Mira.”

“How about coductors?”

“Sir, conductors conduct electricity since

it offers little or no resistance to the flow
of electrons, thus leading to a flow of
electrical current.”

“Very good, Mr. Ebreo.”

“Materials that easily conduct electric charge are called

electrical conductors. Those that poorly conduct
electrical charges are called electrical insulators.”

Charging by Contact

“Sir, what is the meaning of charging by

contact?”

“Charging by contact is charging by conduction. When

a negatively charge rod gets in contact with the metal
sphere, electrons flow from the rod to the sphere. After
the rod is removed, the sphere becomes negatively
charged. The insulated stand prevents the electrons
from flowing out of the sphere.”
 Republic of the Philippines
CAMARINES NORTE STATE COLLEGE
J. Lukban Extension, Brgy. 2, Daet, Camarines Norte – 4600, Philippines

College of Education

Charging by induction

“Charging through inuction involves placing a charged

rod (negative) closer, but not in contact with neutral
metal sphere.’

“Sir, what is the difference between

charging by conduction and induction?”

Differences of conductors and insulators.

Grounding or Earthing

“Earthing (also known as grounding) refers to contact

with the Earth's surface electrons by walking barefoot
 Republic of the Philippines
CAMARINES NORTE STATE COLLEGE
J. Lukban Extension, Brgy. 2, Daet, Camarines Norte – 4600, Philippines

College of Education
outside or sitting, working, or sleeping indoors
connected to conductive systems, some of them
patented, that transfer the energy from the ground into
the body.”
“Sir, why do we need to do grounding
and why it is important?”

“Through grounding, appliances and all those that

depend on electricity are protected from electrical
surges. All the excess electrons go to the earth instead
of accumulating in the electrical device. Electrical
circuits are installed such that there is always a
connection to the ground for safety protection.”

“Did I answer you question, Mr. Asis?”

“Yes, Sir.”

Some Electric Charge Examples in Daily Life

Carpet

“The static charge that accumulates on a person’s body

as he or she walks across a carpet can cause a painful
shock when a metal object is touched and discharges in
the form of an electric spark. Most carpets are made from
man-made materials that are excellent insulators such as
nylon.”

“Sir, do you have any other example

aside from carpet?”

“Yes, Mr. Martin. We have here the nylon clothes”

Nylon clothes

“When the clothes made up of nylon are rubbed against

some other fabric or against the wearer’s skin, static
electricity is formed. This electrostatic force developed
between the skin and the clothing particles is accountable
for the chattering sound caused while removing such
clothes.”

“How about you students do you know any example that

we experience in our daily life?”
 Republic of the Philippines
CAMARINES NORTE STATE COLLEGE
J. Lukban Extension, Brgy. 2, Daet, Camarines Norte – 4600, Philippines

College of Education
“Sir, when we are combing our hair it
also charges and carry an electron.”

“That is right, Ms. Gonzales.”

“Also, we have here the heating system.”

Heating systems

“In the winter, the heating systems of most dwellings

remove moisture from the air and cause the air to have
low humidity. The dry air combined with an insulating
material provides an excellent setting for the
accumulation of a static charge. This condition can
generally be eliminated by the installation of a
humidifier. A simple way to prevent the painful shock of
a static discharge is to hold a metal object, such as a key
or coin, in one hand. Touch the metal object to a
grounded surface, and the static charge will arc from the
metal object to the ground instead of from your finger to
the ground.”

“Lastly, we have dryer.”

Dryer

“The static charge that accumulates on clothes in a dryer

is caused by the clothes moving through the dry air. The
greatest static charges generally are built upon man-
made fabrics because they are the best insulators and
retain electrons more readily than natural fabrics such as
cotton or wool.”

“Do you have any questions?”

“None, Sir”

“Is that clear?”

“Yes, Sir.”

VI. EVALUATE

I. Write true if the statement is correct and write false if

the statement is wrong.
 Republic of the Philippines
CAMARINES NORTE STATE COLLEGE
J. Lukban Extension, Brgy. 2, Daet, Camarines Norte – 4600, Philippines

College of Education

__true__1. There are two types of electrical charges.

__false__2. Two positive charges will attract each other.
__true__3. Two negative charges will repel each other.

II. Encircle the letter of the correct answer.

4. The process of grounding is____.

a. falling to the ground.

b. standing in one place.

c. making a physical connection to Earth.

d. none of the above.

5. The following is some benefits of earthing as

important component of electrical systems, except...

a. It keeps the energy from being wasted

b. It keeps people safe by preventing electric

shocks

c. It prevents damage to electrical appliances

and devices by preventing excessive current
from running through the circuit

d. It prevents the risk of fire that could otherwise

be caused by current leakage

6. Which is NOT an insulator.

a. Wool

b. Plastic

c. Copper

d. Glass

III. In your own words explain the importance of

electrical charge in daily life and give at least an
example.

VII. EXTEND

“Before we end our lesson today who wants to share their

take away/s from the lesson?”

“My take away in this lesson is that there

are two types of electric charge: positive
 Republic of the Philippines
CAMARINES NORTE STATE COLLEGE
J. Lukban Extension, Brgy. 2, Daet, Camarines Norte – 4600, Philippines

College of Education
and negative. The SI unit of a charge is
“Very well said, Ms. Pineda.” coulomb.”

“Yes, Mr. Rin”

“Sir, I just want to add the coulombs

follows the law of conversation of
electric charge, which states that the net
electric charge of an isolated system is
“That ends our discussion in 3rd quarter. Good bye and constant.”
thank you everyone.”

“Thank you so much and goodbye, Sir.”

Prepared by: Approved by:

PIERRE S. LALAQUI RYZA ANNE A. GUEVARRA

Pre-service Teacher Cooperating Teacher