School TUGATOG NATIONAL HIGH SCHOOL Grade Level 10

SCIENCE Teacher Karina A. Cocharo Learning Area SCIENCE

DEPARTMENT Week Week 1 (Sep 30 - Oct. 4, 2024) Quarter SECOND
WEEKLY (Inclusive Dates)
LESSON Contend Standard The learners demonstrate an understanding of the different regions of the electromagnetic spectrum.
PLAN MELCS Compare the relative wavelengths of different forms of electromagnetic waves. (S10-FE-IIa-b47)
Performance
Standard

Day 1 Day 2 Day 3 Day 4 Day 5

Objectives a.Trace the development of Describe the transmission and Compare the relative Solve problems involving
electromagnetic wave theory. propagation of electromagnetic wavelengths, frequencies and wavelengths, frequency, and
b.Discuss the Properties of EM waves energies of the different regions of ‘energy of EM waves
waves EM waves
Topic MALABON PROPERTIES OF PROPAGATION OF Wavelengths, frequencies, and PROBLEM SOLVING
TEACHERS DAY energies of the different regions of OF EM WAVES
CELEBRATION EM WAVES EM WAVES EM WAVES
Routine A. Prayer A. Prayer A. Prayer A. Prayer
B. Reminder of the Health B. Reminder of the Health B. Reminder of the Health B. Reminder of the Health
Activities and Safety Protocol and Safety Protocol and Safety Protocol and Safety Protocol
C. Checking of Attendance C. Checking of Attendance C. Checking of Attendance C. Checking of Attendance
D. Kumustahan D. Kumustahan D. Kumustahan D. Kumustahan

Take the Pretest . Let the students discuss the uses of this object, give Use simple experiment to show how light
Elicit the importance of these technology in their daily living. travel using a flash light.
Ask them individually or by group to Have a quick review on the proponents Let them draw their own wave pattern.
create KWL chart and write anything on of the EM waves.
the K and W column on what they know
and what are their questions about EM
waves. Imagine a world without mobile phones,
radio, TV. How would you communicate?
Engage Today we will explore the invisible waves
Provide the class reading materials of some that make all this possible.
scientists involved in the development of Use a short video demonstrating EM
electromagnetic theory.
Waves.

Explore Activity1 Activity 1 Problem Solving:

Determine the wavelength ranges of each of Identify and list different types of EM 1. What is the solution for finding the
the forms of electromagnetic waves. 2. Show the electromagnetic
Waves. wavelength of radio waves transmitted at
Afterwards answer the questions spectrum. a frequency of 100.5 Hz, with the speed
Explain the properties of each type
Determine the frequency and of light being approximately 3x10 8
Electromagnetic Wave Wavelenght Range
wavelength ranges of the different meters per second?
Radio wave
2. How do we calculate the frequency in
Microwave
Infrared types of EM Waves. Hertz of visible light with a wavelength of
 Visible light
Ultra violat
500 nm emitted by a laser?
3. How do we determine the wavelength
Q1. Which electromagnetic wave has the of the microwave oven operating at a
Refer to the illustration: frequency of 2.45 Hz?
longest wavelength?
1. Discussion on the application of EM
____________________________________ waves.
____________________________________
_____

Q2. Which electromagnetic wave has the

shortest wavelength?

____________________________________
____________________________________
_____

Q3. Observe what happens to the

wavelength of the electromagnetic waves as
they

progress (goes rightward from the figure).

Does the wavelength of the EM waves

increase or decrease as we go from radio

wave to gamma ray.

Let the students share their answers to

the class
Explain In rural areas, understanding these waves Make a chart of electromagnetic waves Now that you are already familiar with the EM waves are waves that can travel
can help students learn about agricultural through space and do not need a
showing the comparison of its size. Cut wavelength and frequency of EM
technologies that rely on electromagnetic medium. They are characterized by their
signals. out pictures of objects or look for things that waves, on a separate sheet of paper, copy and wavelength, frequency, and energy.
may represent the size of each complete the table below.

electromagnetic wave. On a separate sheet of Identify what happens to the wavelength,

(EM wave) or electromagnetic radiation is a paper, paste the pictures you have frequency and energy of the EM
wave that
found and arrange them according to the waves following the direction of the arrows. You
is created as a result of vibrations between arrangement of EM waves in the may answer INCREASING or
an electric field and magnetic field, hence
electromagnetic spectrum. DECREASING inside the arrows.
known as ‘electromagnetic wave’. Recall
Oersted’s discovery: A changing electric field

produces magnetic field. A changing criteria:

magnetic field is therefore produced around
Accuracy of Information
 a 5 points

vibrating charge. And according to Michael Neatness of Work

Faraday, the changing magnetic field will
5 points
produce electric field. A wave carries energy
as it propagates, EM wave does the same, Appropriateness of Materials

too. EM waves can travel through anything 5 points

even on vacuum, meaning they do not

need any medium to travel. They travel in a

vacuum at a speed of 3x10

m/s

Elaborate Add additional information on the How understanding electromagnetic waves can Let the students discuss the application
contributions of the following scientists: Share personal experiences related to help them in their future careers. of EM waves and their beneficial effect to
James Clerk Maxwell technology and communication. living things.
Heinrich Hertz
Electromagnetic waves helps students
Michael Faraday appreciate how mobile phones, other-
Andre-Marie Ampere technologies work, which may use daily.
Hans Christian Oersted
Evaluate Use the answers as their own
evaluation.

Extend Write a reflection: How important are the Create a foster illustrating the electromagnetic Reflection: Do research on what is new in solve the problem
Radio Waves, Microwave,infrared in your spectrum wireless communications.How this new What is the frequency in hertz of
everyday lives? technology will affect the current state of ultraviolet waves with a wavelength of
 communications. 300 nm emitted by the sun?
Reflection
No. of learners who earned
80% in the evaluation
No. of learners who require
additional activities for
remediation
Did the remedial lessons
work? No. of learners who
have caught up with the
lesson
No. of learners who continue
to require remediation
Which of my teaching
strategies worked well? Why
did this work?
What difficulties did I
encounter which my principal
or supervisor can help me
solve?
What innovation or localized
materials did I use/discover
which I wish to share with
other teachers?