DETAILED LESSON PLAN IN TECHNOLOGY AND LIVELIHOOD EDUCATION
GRADE 8 - AUTOMOTIVE SERVICING
I.
OBJECTIVES:
At end of the lesson the students are expected to:
a. Identify the steps in spark plug testing;
b. Test the spark plug using ohmmeter;
c. Appreciate the importance of spark plug testing by using ohmmeter.
II.
SUBJECT MATTER
a. Topic: Spark Plug Testing
b. Concept/Content:
SPARK PLUG – is a device for delivering electric current from an ignition system to the
combustion chamber of a spark-ignition engine to ignite the compressed fuel/air mixture
by an electric spark, while containing combustion pressure within the engine.
OHMMETER - is an electrical instrument that measures electrical resistance
TESTER - A tester can determine the quality of that spark against what it should ideally
produce. In other words, it will check if your spark plug is working properly.
c. Process Skills: Listening, speaking, observing, collaborating, performing
d. Instructional Materials: Laptop, Projector, Activity Cards, Visual aid
e. Value Focus: Cooperation, Active Participation, Collaboration
III.
DEVELOPMENTAL TASK
TEACHER’S ACTIVITY
A. Preliminary Activities
STUDENT’S ACTIVITY
PRAYER
Let us all stand. Mindy please lead the
prayer.
(everybody will stand up and pray)
GREETINGS
Good Afternoon class!
CHECKING OF ATTENDANCE
Who is absent today?
Row 1?
Row 2?
Row 3?
Good afternoon ma’am!
None ma’am.
(seat plan)
1. REVIEW
Let us recall our previous topic.
Class, last meeting we have
discussed about spark plug and its
different parts, right?
Now, what is spark plug?
Yes John.
Very good! Now who can give one
part of a spark plug and its function?
Yes Mindy.
Yes ma’am (in chorus)
A spark plug is a device in the engine of a motor
vehicle, which produces electric sparks to make
the petrol burn.
Ma’am central electrode, it is the hottest part of
the plug.
Exactly! Another answer? Yes Carlo.
Ma’am Terminal. The top of the spark plug
contains a terminal to connect to the ignition
system.
Very good! Is there any question
about our previous topic?
None ma’am.
2. MOTIVATION
At this point in time let’s have a game.
The game called “POP ME and
ARRANGE ME”
I will group you into two groups. Let
us have a traditional count.
Instruction:
1. Pop the balloon then get the
scrambled letter with picture.
2. Arrange the given letters to form a
correct word.
3. Each group will be given 3 minutes
to do the task.
4. The first group that can pop and
arrange will be given one point.
Is that clear class?
1 and 2 students count off
Yes ma’am.
Yes ma’am.
Thank you, class did you all enjoy
the game?
3. Presentation of the Lesson
Are you familiar with those words
class?
Those words are related to our topic
for today.
And our topic for this afternoon is
All about Spark Plug Testing
Procedures.
Yes ma’am.
Before we proceed with our lesson, let
us know first our lesson objectives.
Everybody kindly read.
OBJECTIVES:
At end of the lesson the students are expected to:
a. Identify the steps in spark plug
testing;
b. Test the spark plug using ohmmeter;
c. Appreciate the importance of spark
plug testing by using ohmmeter.
4. UNLOCKING OF DIFFICULTIES
Now let us unlock first the difficult
terms in order for you to be guided.
Who can read the definition of spark
plug? Yes Randy.
SPARK PLUG – is a device for
delivering electric current from an
ignition system to the combustion
chamber of a spark-ignition engine to
ignite the compressed fuel/air mixture
by an electric spark, while containing
combustion pressure within the
engine.
Thank you, how about tester?
Yes, Alejandro.
TESTER– A tester can determine
the quality of that spark against
what it should ideally produce.
In other words, it will check if your
spark plug is working properly.
What do you think the testing device
can we use to check the spark plug?
Yes, jake you are raising your hands.
Ma’am Ohmmeter.
Very good jake.
How about the Ohmmeter?
Yes, Albert.
OHMMETER - is an electrical
instrument that measures electrical
resistance.
Who among you here have already
seen an ohmmeter? Yes Skepper.
Can you describe the ohmmeter that
you have seen?
Ma’am it has two leads and numbers. It looks like
a weighing scale ma’am.
Very good idea skepper.
(show power point presentation)
B. LESSON PROPER
1. SETTING OF STANDARDS


Identifying the steps in testing
the spark plug.
Steps:
1. the students will be grouped
into four (4).
2. the students will arrange the
steps in spark plug testing.
3. the given time for this activity
is 5 minutes.
4. each member of the group
should participate.
2. ACTIVITY
To further understand our topic and to
see if you really understand our
discussion let’s have an activity called
“THINK – ARRANGE and SHARE”
I will group you into four (4). Please
count off.
1,2,3,4…
Group 1 go to my right side, Group 2
go to my left side, Group 3 at the back
of the Group 1 and Group 4 at the
back of the Group 2. Is that clear?
Yes ma’am.
Proceed now with your groups and
Kindly, get your activity sheet.
(See attached Activity at the back)
Work on your task. And then after you
finished your activity, we will check
your work. Is that understood class?
Yes Ma’am
And here is the rubric in judging your
work and this will serve as your guide
too.
Criteria
Participation
5 points
All
members
did
participate
3 points
One or two
members
did not
participate
Discipline
All
members
are
working
silently
One or two
members
are making
unnecessary
noise
Correctness
No errors
are made
One or two
mistakes are
made
Promptness
First
group
who
finished
the work
20 points
Group that
finished the
task after
the time
allocated
Total points
1 point
Three or
more
members
did not
participate
Three or
more
members
are making
unnecessary
noise
Three or
more
mistakes are
made
Last group/s
who finished
the work
Your time starts now.
(Teacher monitors the activity)
Time is up. (after 5 mins.)
3. ANALYSIS
(checking of activity)
Okay let us check your work.
(Teacher checks the work of every
groups if it is correct and totally done)
Okay very good, group 1.
Thank you, let’s give them 5 dub
claps.
Excellent! Thank you group 2, let’s
give them 5 dub claps.
very good! Thank you group 3, let’s
give them 5 dub claps.
Very good! Thank you group 4, let’s
give them 5 dub claps.
(student’s will do their task and cooperate to their
group)
What have you learned in our previous
activity?
Yes, Carlo you are raising your hands. Ma’am I learned that there are different steps on
how to test the spark plugs.
Good idea Carlo!
Another answer? Yes, Myco.
Ma’am I have learned that in testing the spark
plug, the steps should be in order.
Excellent! Thank you myco.
Let us discuss it further.
(distributing of handouts)
Spark plugs play a major role in
starting your vehicle. Without them
your vehicle wouldn't start, so
maintaining them is very important.
Why is it spark plug plays a major role
in starting your vehicle? Yes Joshua
Ma’am because as you said earlier, without the
spark plug the vehicle wouldn’t start.
Although they’re one of the tiniest
parts in your car, spark plugs are
absolutely crucial. If you didn’t have
spark plugs, you’d have no way to
speed up on the highway or even start
up your vehicle. In fact, without the
tiny spark plugs, your car would be
utterly useless.
Now, how will you test a spark plug?
Anyone knows how?
Okay. This afternoon, I will show you
on how to test the spark plug.
Now, are you ready to witness on how
to test the spark plug?
First, you will be needing an
ohmmeter.
(Teacher show the actual ohmmeter)
This is the positive lead (red) and the
negative lead (black).
Here are the procedures on how to
test the resistance of a spark plug.
1. Set your multi tester to “OHMS”
position.
2. Touch the test leads together. The
meter should read zero ohms.
3. Touch one-meter lead to the
terminal of the spark plug and the
other lead to engine ground.
4. Press the points of the meter leads
firmly to the metal to ensure a good
connection.
Yes Ma’am.
5. If the meter reading is anything
other than what you saw in step 4
range to 5000 Ohms.
(teacher demonstrate the steps on
how to test the spark plug)
Why do we need to observed the
correct step by step procedures in
testing the spark plug?
Yes, Christian.
Very good. Another answer?
Yes Luisa Mae.
Ma’am we need to observed the correct step by
step procedures in testing the spark in order for us
to test the spark plug accurately.
Ma’am we need to observed the correct step by
step procedures in testing the spark because it will
serve us our guide in checking the spark plug
correctly.
4. ABSTRACTION
Again, what is the first step in testing
the spark plug? Yes Jett.
Set your multi tester to “OHMS” position.
Very good, how about the second
step? Yes, Loria
Touch the test leads together. The meter should
read zero ohms.
Very good, how about the third step?
Yes, Claire
Touch one-meter lead to the terminal of the spark
plug and the other lead to engine ground.
Very good, how about the fourth step?
Yes, Jake
Press the points of the meter leads firmly to the
metal to ensure a good connection.
Very good, how about the last step?
Yes, Jhonmark.
If the meter reading is anything other than what
you saw in step 4 range to 5000 ohms.
What measuring instrument is used to
test the spark plug?
Ma’am Ohmmeter
Very good. What is an Ohmmeter?
Ma’am is an electrical instrument that measures
electrical resistance
Very good class!
5. APPLICATION
Let us have our last activity.
Now it’s your turn to test the spark
plug. Here are the materials needed.
I have also here an envelope; inside of
this is the procedure.
With the same group. Please get your
materials here and the envelopes.
(Teacher monitors the activity)
Time is up. (after 5 mins.)
(student’s will do their task and cooperate to their
group)
Now, you already know how to test a
spark plug?
Yes ma’am.
Very good.
And why is it important to know the
proper procedures in testing a spark
plug?
And what will happen if you test the
spark plug without knowing the proper
procedures?
Ma’am it is really important to know the proper
procedures in testing a spark plug because it will
be the guide to test the spark plug correctly and
accurately.
Ma’am it can affect the accurate result in testing a
spark plug.
Good idea.
If you’re friend touch the tips of the
leads or the vehicle ground while he is
testing his spark plug, what will
happen to his reading?
Why?
And what will happen if you will not
follow the proper procedures in testing
a spark plug?
Ma’am his reading can be falsely indicate a bad
plug.
Because touching the tips of the lead can also
read body resistance so it can indicate a falsely
reading in spark plug testing.
Ma’am it will lead into accident and the tester will
be damage.
Very good idea.
What will you do in order for you to
have an accurate test result in testing
a spark plug?
Very good. Is there any questions or
clarification?
Ma’am by observing the proper procedures and
apply it in testing the spark plug.
Ma’am if the car won’t start is there a possibility
that the spark plug is bad?
Yes, so all you have to do is to check
the spark plug first, because spark
plug is also a heart of a car it starts
with the spark plug in order for a car to
start properly.
Okay ma’am Thank you.
Now, let’s proceed to our quiz.
IV.
EVALUATION
MULTIPLE CHOICE
Direction: In a ¼ sheet of pad paper choose the letter which corresponds to your answer.
1. Angelie want to test the spark plug of her car. What will be the first thing she will do?
A. Touch the test leads together.
B. Set your multi tester to “OHMS” position.
C. Touch one-meter lead to the terminal of the spark plug
D. Press the points of the meter lead firmly to the metal to ensure a good
connection.
2. Why is it important to know the step by step procedures in testing a spark plug?
A. To work easier and faster in your workplace
B. To put yourself into dangerous health or safety
C. To make your work not efficient and messy workplace
D. It will be the guide to test the spark plug correctly and accurately.
3. Is an electrical instrument that measures electrical resistance
A. Ohmmeter
B. thermometer
C. Anemometers
D. Force Gauge
4. After touching the test leads together what will be the next thing to do?
A. Ensure a good connection.
B. Touch the test leads together.
C. Set your multi tester to “OHMS” position.
D. Press the points of the meter lead firmly to the metal to ensure a good
connection.
5. Is a device for delivering electric current from ignition system to the combustion chamber
of a spark-ignition engine to ignite the compressed fuel/air mixture by an electric spark.
A. Ohmmeter
B. Spark Plug
C. Battery
D. Force Gauge
6. Jolen’s friend touch the tips of the leads or the vehicle ground while he is testing his
spark plug, what will happen to his reading?
A. Ensure a good connection.
B. Can have an accurate result in testing his spark plug
C. His reading can be falsely indicating a bad plug.
D. His tester will be damage.
7. What will you do in order for you to have an accurate test result in testing a spark plug?
A. By observing the proper procedures and apply it in testing the spark plug.
B. By observing the proper procedures but do not apply in testing the spark plug.
C. By not observing the proper procedures in testing the spark plug
D. Ensure a good connection.
8. What is the last step in testing the spark plug?
A. Ensure a good connection.
B. Touch the test leads together.
C. Set your multi tester to “OHMS” position.
D. If the meter reading is anything other than what you saw in step 4 range to 5000
Ohms.
9. What is the third step in testing the spark plug?
A. Ensure a good connection.
B. Touch the test leads together.
C. Touch one-meter lead to the terminal of the spark plug and the other lead to
engine ground.
D. If the meter reading is anything other than what you saw in step 4 range to 5000
Ohms.
10. What is the accurate reading range in testing a good spark plug?
A. 7000 ohms
B. 5000 ohms
C. 10000 ohms
D. 500 ohms
POSSIBLE ANSWER:
1. B
2. D
3. A
4. A
5. B
V.
6. C
7. A
8. D
9. C
10. B
ASSIGNMENT:
In a ½ sheet of paper answer enumerate the five steps in testing the spark plug
procedures.
Prepared by: KHEY D. DORIMAN
Student Intern
NICANOR S. TOGLE, LPT.
Critic Teacher
ACTIVITY SHEET
Group 1
TITLE: “THINK - ARRANGE AND SHARE”
OBJECTIVE: To arrange the correct procedures in testing a spark plug.
INSTRUCTIONS:




Write your names in a ¼ sheet of pad paper
Choose a leader, secretary and 2 reporters.
You will be given 5 minutes to do your activity.
Arrange the given procedures correctly
POSSIBLE ANSWER:
1. Set your multi tester to “OHMS” position.
2. Touch the test leads together. The meter should read zero ohms.
3. Touch one-meter lead to the terminal of the spark plug and the other lead to engine ground.
4. Press the points of the meter leads firmly to the metal to ensure a good connection.
5. If the meter reading is anything other than what you saw in step 4 range to 5000 Ohms
ACTIVITY SHEET
Group 2
TITLE: “THINK - ARRANGE AND SHARE”
OBJECTIVE: To arrange the correct procedures in testing a spark plug.
INSTRUCTIONS:




Write your names in a ¼ sheet of pad paper
Choose a leader, secretary and 2 reporters.
You will be given 5 minutes to do your activity.
Arrange the given procedures correctly
POSSIBLE ANSWER:
1. Set your multi tester to “OHMS” position.
2. Touch the test leads together. The meter should read zero ohms.
3. Touch one-meter lead to the terminal of the spark plug and the other lead to engine ground.
4. Press the points of the meter leads firmly to the metal to ensure a good connection.
5. If the meter reading is anything other than what you saw in step 4 range to 5000 Ohms
ACTIVITY SHEET
Group 3
TITLE: “THINK - ARRANGE AND SHARE”
OBJECTIVE: To arrange the correct procedures in testing a spark plug.
INSTRUCTIONS:




Write your names in a ¼ sheet of pad paper
Choose a leader, secretary and 2 reporters.
You will be given 5 minutes to do your activity.
Arrange the given procedures correctly
POSSIBLE ANSWER:
1. Set your multi tester to “OHMS” position.
2. Touch the test leads together. The meter should read zero ohms.
3. Touch one-meter lead to the terminal of the spark plug and the other lead to engine ground.
4. Press the points of the meter leads firmly to the metal to ensure a good connection.
5. If the meter reading is anything other than what you saw in step 4 range to 5000 Ohms
ACTIVITY SHEET
Group 4
TITLE: “THINK - ARRANGE AND SHARE”
INSTRUCTIONS:




Write your names in a ¼ sheet of pad paper
Choose a leader, secretary and 2 reporters.
You will be given 5 minutes to do your activity.
Arrange the given procedures correctly
POSSIBLE ANSWER:
1. Set your multi tester to “OHMS” position.
2. Touch the test leads together. The meter should read zero ohms.
3. Touch one-meter lead to the terminal of the spark plug and the other lead to engine ground.
4. Press the points of the meter leads firmly to the metal to ensure a good connection.
5. If the meter reading is anything other than what you saw in step 4 range to 5000 Ohms