Daily lesson log sample

1. DAILY LESSON LOG School OLONGAPO CITY NATIONAL HIGH
SCHOOL
Grade Level &
Quarter
GRADE 8
1ST QUARTER
Teacher MARL JEVIN D. CALABIA Learning Area SCIENCE
Inclusive Dates September 18-22, 2023
I. OBJECTIVES
MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY
1.Define work scientifically
2.Identify situations in which work is done and in which no work is done.
A. Content Standard The learner demonstrates understanding of work using constant force, power, gravitational potential energy,
kinetic energy, and elastic potential energy.
B. Performance Standards
C. Learning Competencies /
Objectives (Write the LC
Code)
1. Define work.
2. Differentiate
whether work was
done in a situation
or not.
1. Calculate the
amount of work
done using
appropriate units.
1.Describe the energy
changes when energy
is transferred from one
body to another.
2.Give examples of
how energy is
transferred
1. Describe how work
is related to power and
energy.
2. Compute for your
power output in
walking or running up
a flight of stairs
II. CONTENT
III. LEARNING RESOURCES
A. References
1. Teacher’s Guide pages
2. Learners’ Materials pages
3. Textbook pages
4. Additional Materials from
Learning Resources
Portals

2. B. Other Learning Resources
IV. PROCEDURES
A. Revising
previous
lesson or
presenting
the new
lesson
State the Second Law of Motion When do we say
that work is done?
How will you
compute the
amount of work
done by an
object?
Differentiate potential form kinetic
energy
B. Establishing
a purpose
for the
lesson
Ask the students if they know the
meaning of work. Emphasize to
them that the meaning /definition
of work and the one that we use in
science are quite different from
each other.
Students will watch
a short video clip on
how to calculate the
amount of work
done on the object.
(Please follow the
link for the video
clip on work
www.youtube.com/
watch?v=hQKYb7P
5vwA)
Energy enables us
to do work. It is
likened to money.
Having a lot of
energy is like
having plenty of
money. But
having money is
not enough to do
useful things.
Money should be
handed over to
another person so
it can do
something.
Energy is also like
this. It needs to be
transferred to
another body so it
can do something
useful.
Video Presentation
Showing a short video clip about
sport Triathlon
(www.youtube.com/watch?v=wxt
R9hf39Ug)
C. Presenting
examples/
instances of
the new
lesson
Simple Demonstration:
Ask three students to demonstrate
in the class the following
actions/tasks:
a. Student 1 pushes the
blackboard.
Example of
situational problems
on work:
A box is dragged
horizontally across
Examples of
situation that
shows transfer of
energy:
1.When you push
a book across the
Video Presentation
Showing a short video clip about
sport Triathlon
(www.youtube.com/watch?v=wxt

3. b. Student 2 pulls a chair from one
end of the room to the other end.
c. Student 3 pulls a chair then
return it to its original place.
a floor by a 100 N
force acting parallel
to the floor. What is
the work done by
the force in moving
it through 8m?
table, the energy
from your moving
arm is transferred
from your body to
the book, causing
the book to move.
2. Fingers hitting
piano keys
transfer energy
from the player’s
hand to the keys.
R9hf39Ug)
D. Discussing
new concepts
and
practicing
new skills #1
From the three demonstrations,
which activity showed that work
is done, or no work done?
Explain.
Do the Activity on
Calculating Work,
Lesson Guide
Grade 8 First
Quarter pp. 33-34
Do the Activity -
Lesson Guide
Grade 8 First
Quarter pp 37-38
Do the Activity on How POWER-
ful am I, Lesson Guide Grade 8
First Quarter, pp. 40-41
E. Discussing
concepts
and
practicing
new skills
#2
Do the Activity on Is there work
done?
Lesson Guide Grade 8 First
Quarter pp. 29-30
Work problems to
be solved by pairs:
1. A body moves
through 4m while a
force F of 12
Newton acts on it.
What is the work
done by the force
on the body?
2.Two men exerted
a force of 1080 N to
push the car 218 m
to the nearest fuel
station. Determine
the work done on
the car.
Analysis:
1. Is there work
done on the ball?
2. What can a
moving ball do
when it interacts
with another
object?
3. What happens
to the energy of
the ball (doing the
work) and the
bottle (on which
work is done)?
Explain your
answer.
Students will present their tables
showing their group’s name,
weight, height of stairs, time, work
done and power.
Q1. Who among the group
members had the highest power
output?
Q2. What is the highest power
output?
Q3. Who among the group
members had the lowest power
output?
Q4. What is the lowest power
output?
Q5. What can you say about the
work done by each member of the
group? Q6. Did each member
perform the same amount of work
in climbing the
stairs?
Q7. What factor/s determined the
highest/lowest power output?

4. F. Developing
mastery.
(Leads to
Formative
Assessment
3)
Analysis:
1. Which of the four situations
demonstrated or showed that work
is done? Why?
2. Why do you think situation
number 3 did not show that no
work is done? Why?
3. What is the effect of the force
on the object?
4. How will you relate the force
and the direction of the motion?
5. When can we say that work is
done?
Discuss the answer
on the given
exercises
Discuss the
answers in the
given activity
Discuss the answers in the given
activity.
G. Finding
practical
applications
of concepts
and skills in
daily living
Agree or Disagree
Ask the students to take a standby
showing thumbs up or thumbs
down sign with the following
statements.
1. Work does not necessarily
mean physical labor.
2. If there is displacement in the
same direction of the force then
there is work
automatically.
3. Work done at a very limited
time frame means there is high
power output.
4. If there is no force exerted,
there won’t be any work output.
5. If force and distance move at an
angle there is work one.
Analyze the picture,
do you think that the
man climbing upstairs
demonstrate or
performs work? Why?
Cite other
examples of
energy transfer in
your daily life
situations.
Your Opinion Here!
If you were be given a chance to
be the leader of our country, how
would you exercise your power of
authority?
H. Making
generalizati
ons and
abstractions
about the
lesson
Work is present when the force
exerted causes an object to have a
displacement in the same
direction of the force.
Work is said to be
done when a body
undergoes
displacement. It is
denoted by W.
Work Formula is
given by w=fd
When energy is
transferred, one
body loses
energy, whereas
the other gains it.
Work is a method
of energy transfer.
When a body does
Power provides a measure of both
the amount of work done or the
amount of energy expended and
the time it takes to do it. If you do
a physical task quickly you have
more power than when you do the
same task slowly.

5. where:
F = force applied
and d =
displacement.
Work formula is
used to calculate
work done, force
or displacement in
any problems. It is
given in N-m.
work, it loses
energy. The body
on which work is
done gains
energy.
Examples of
energy transfer
are:
a. A spring
vibrates after
being stretched.
b. A bicycle going
uphill, which
stops.
In science, power is defined
as the rate at which work is done
or the rate at which energy is
expended, or is transferred, or
transformed. In equation,
Power = work/time
or
Power = energy/time
What is the SI unit of
power? Since the SI unit of work is
joule and the SI unit of time is
second, the SI unit of power is
Joule/second. This is given a
special name,
watt, in honor of James Watt. So, 1
watt (W) = 1 joule (J)/second (s)
I. Evaluating
learning
Identify situations in which work
is done and in which no work is
done. Write W if the situation
shows work and NW if no work.
1. Lifting a box from the floor.
2. Pushing against the wall.
3. Pushing a box along the floor.
4. Carrying a bag of grocery
5. Raising a flag during the flag
ceremony
Learners will
answer a multiple-
choice quiz.
Learners will
answer a multiple-
choice quiz.
Learners will answer a multiple-
choice quiz.
J. Additional
activities
for
application
or
remediatio
n
Prepared by: Noted by:
Marl Jevin D. Calabia Jeffrey C. Mabini
T-I SSHT-VI