Lesson plan in respiratory system

1. DETAILED LESSON PLAN IN SCIENCE 9
Division: University of Antique Laboratory High School Grade Level: 9
Name of Teacher: Aliah C. Mosquera Learning Area: Living Things and their Environment
Teaching Date and
Time:
Week 1 Quarter: 1st
Quarter
Duration: 60 minutes
I. OBJECTIVES Teacher’s Activity Learners’ Activity
A. Content Standard The learners demonstrate understanding of...
1. how the different structures of the circulatory and
respiratory system work together to transport oxygen-rich
blood and nutrients to the different parts of the body.
2. The prevention detection and treatment of diseases
affecting circulatory and respiratory system.
B. Performance Standard The learners should be able to conduct an information
dissemination activity on effective ways on taking care of the
circulatory and respiratory system based on the data gathered based
on the school or local health workers.
C. Learning Competency
with code
S9LT-Ia-b-26
D. Learning Objectives OBJECTIVES:
At the end of the lesson, students should be able to:
1. Identify the key parts of the respiratory system.
2. Label and describe the organs in the respiratory system.
3. Evaluate each of the respiratory organs in terms of their
function
II.CONTENT
Topic: Respiratory System
Subject Integration: Technology, Health
III.LEARNING
RESOURCES
A. References
A.1. Teacher’s Guide
pages
Science 9 Teacher’s Guide, pp 5-7.

2. A.2. Learner’s Material
pages
Science 9 Learner’s Module, pp 2-6.
A.3. Textbook pages None
A.4. Additional Materials
from Learning Resource
(LR) Portal
None
B. Other Learning
Resources
PowerPoint Presentation, Laptop, Projectors/LED TV, Activity
sheets, Bunch of grapes, internet for illustrations and pictures
IV. PROCEDURE
A.Reviewing previous
lesson or presenting the new
lesson
Introductory Activity (5 min)
A. Prayer
Good morning class, before we start with our lesson, let us have a
short prayer.
B. Checking of Attendance
I will now check your attendance, please say present when I call your
name.
C. Review
In our previous lesson, we have discussed about the circulatory.
What is a circulatory system?
Yes, very good. What are the parts of the circulatory system?
Very good. What is the function of the heart?
Okay. What about the blood vessels?
That’s correct. And there are three types of blood vessels, what are
they?
Student will lead a prayer.
Present
Present
A circulatory system is the life support structure that nourishes the
cells with food and oxygen. It also carries away the waste products.
The parts of the circulatory system are heart, blood vessels and blood.
The heart pumps the blood throughout the body.
The blood vessels carries the blood throughout the body.
The three types of blood vessels are arteries, veins and capillaries.
The blood carries the material throughout the body.

3. Very good. Give the function of the blood.
Thank you. Let us now move on to our next topic.
B. Establishing a purpose
for the lesson
At the end of the lesson, students should be able to:
1. Identify the key parts of the respiratory system.
2. Label and describe the organs in the respiratory system.
3. Evaluate each of the respiratory organs in terms of their
function
C. Presenting
examples/instances of the
new lesson
(ELICIT)
Before we start with our next lesson, we’re going to play a game
called 4 Pics 1 Word.
LUNGS
OXYGEN

4. Excellent class. You guessed all the words. Do you have an idea what
is our topic for today?
INHALE
NOSE
EXHALE
Our topic for today is about the respiratory system

5. D.Discussing the new
concepts and practicing
new skills
(ENGAGE)
Our topic for today is about respiratory system. Now, who can
tell me what a respiratory system is?
Very good. What do you think are the parts of the respiratory
system?
Yes, that is correct. We will know the functions of these parts
as we go through with our discussion.
(The teacher will post a picture of a bunch of grapes.)
I have here a picture of a bunch of grape, can you identify the
parts of the respiratory system that are similar to these bunch of
grapes.
The respiratory system involves in the intake and exchange of
oxygen and carbon dioxide between the organism and the
environment.
The parts of the respiratory system are the nose, nasal cavity,
trachea, bronchi, bronchioles and alveoli.
Main stem = trachea
Two large branching stems = bronchi
Little stems = bronchioles Individual grapes = alveoli

6. E. Discussing new concepts
and practicing new skills
(EXPLORE)
Okay class, for your activity today, I want you to group
yourselves into five. Please count 1 to 5. The first 5 students
will be group 1, the next 5 students will be group 2 and so on
and so forth.
Each group, kindly select your leader and secretary. The
secretary will list the names of the members of the group.
. I will provide your activity sheets with a diagram in which you
will label the parts and put their function of the respiratory
system. You also have questions to answer, so divide the work
with your groupmates. Leaders of each group, please get your
activity sheets here, so you can start working on your activity.
When you’re done, you can pass your work, don’t forget to put
your group number.
(Group performance will be checked during discussion).
The group with the highest number of correct answers will have
a plus 10 in the class participation while the other group will
receive plus 5 for the class participation.
Activity 1
What a Bunch of Grapes!
Objective: Identify the key parts of the breathing system
Describe the function of each part of the breathing
system
Materials: Bunch of grapes illustration
Procedure:
1,2,3,4, 5…1,2,3,4, 5…
Leaders will get their activity sheets and start working on their
activity.
The students will label the parts of the respiratory systems and
its function and answer the questions on the activity sheet.

7. 1. Present the bunch of grapes illustration. Let the bunch of grapes
represent the breathing system.
2. Within your group, locate the parts of the breathing system:
a. the main stem as the
b. the large branching stems as the
c. and all the little stems as the
d. The individual grapes are the
3. Trace the pathway of oxygen using the “Bunch of Grapes” model.
Note that air moves from the nose (nasal cavity) and mouth (oral
cavity) to the trachea, bronchi, bronchioles, and then into the alveoli
(air sacs). The air we breathe carries the gas oxygen. When we
breathe, the oxygen goes out of the lungs.
4. Refer to the diagram and check your understanding of the
breathing system by labeling each part and giving its functions in
the box corresponding to the part.
Guide Questions:
Q1. What does each part of the “Bunch of Grapes” model represent,
in relation to the breathing system?
Q2. How will you describe the pathway of oxygen in the breathing
system?
Q3. What will happen if one part of the system fails to carry out its
function properly?

8. F. Developing mastery
(Leads to Formative
Assessment)
(EXPLAIN)
So let us now discuss the answers of your activity.
(The teacher will post the diagram with the correct answer.)
What is the function of the trachea?
Very good. What about the function of the bronchi?
Yes, correct. What is the function of the bronchioles?
Yes, that is correct. Give the function of the alveoli.
Yes, correct. How will you describe the pathway of oxygen in
the breathing system?
Very good. What will happen if one part of the system fails to
carry out its function properly?
Very good class. You did well on your activity.
Trachea also called windpipe; a hollow tube that serves as
passageway of air into the lungs
Bronchi also called bronchial tubes; two branching tubes that
connect the trachea to the lungs.
The bronchioles are hair-like tubes that connect the alveoli.
The alveoli allows the gas exchange in the lungs.
From the nose and mouth, oxygen travels to the trachea,
bronchi, bronchioles, and then into the alveoli.
The other parts of the breathing system will not be able to
carry out their corresponding functions as well, and the whole
respiratory system will be affected.

9. G.Finding practical
applications of concepts
and skills in daily living
(ELABORATE)
What are the key parts of the respiratory system?
Okay. So let us trace the pathway of oxygen in the respiratory
system.
What is function of the nose?
What gas enters the nose?
Where does gas exchange happen?
What gas is exhaled?
Why is our respiratory system important?
The key parts of the respiratory system are nose, nasal cavity,
trachea, bronchi, bronchioles and alveoli.
The air we breathe goes through the nose, nasal passages, and
then through trachea or windpipe, which separates into two
branches, called bronchial tubes or bronchi, one entering each
lung. The bronchi subdivide many times inside the lungs,
finally becoming hairlike tubes called bronchioles. In the last
part of the terminal bronchioles are tiny bubble-like bunch of
structures called alveoli or airsacs.
Nose is the organ through which the air enters and is filtered.
The air that enters the nose is oxygen.
Gas exchange happens in the alveoli.
The gas exhaled is carbon dioxide.
Our respiratory system is important because it allows the
exchange of gases which enables us to breath.

10. What do you think will happen if you do not take care of you
respiratory system?
Yes, that is correct. And what will you do to maintain a healthy
respiratory system?
Yes, very good class. So I hope you don’t smoke to avoid
problems with your respiratory system. Remember that our
respiratory system is important, and if one organ is damaged, it
cannot work properly. So take care of your body. Okay class?
Are there any questions class? If none we will have a short quiz.
Please get a ¼ sheet of pad paper.
If we do not take care of our respiratory system we might
acquire illness or disease such as lung cancer, pneumonia,
asthma, bronchitis, tuberculosis and many more.
Avoid vices, such as smoking. Stay away from people who
smoke because second hand and third hand smoke are harmful.
Yes ma’am.
H. Making generalizations
and abstractions about the
lesson
Activity: Demonstrate it!
The teacher will let the students perform a breathing exercise. Students perform the breathing exercise.
I. Evaluating Learning
(EVALUATE)
A. Multiple choice
Read the questions carefully and choose the letter of the correct
answer.
1. Which of the following organs is responsible for the exchange of
gasses inside the body?
a. lungs b. alveoli c. heart d. ovary
2. It is where the exchange of gasses take place.
a. trachea b. nose c. alveoli d. bronchi
Responses
1. a
2. c
3. a
4. a
5. a

11. 3. A hollow tube that serves as passageway of air into the lungs.
a. trachea b. bronchi c. nose d. nasal cavity
4. Two branching tubes that connect the trachea to the lungs.
a. bronchi b. alveoli c. trachea d. bronchioles
5. The organ through which the air enters and is filtered.
a. nose b. nasal cavity c. lungs d. alveoli
B. Enumeration
Enumerate the key parts of the respiratory system.
6-10. Key parts of the respiratory system.
6. nose
7. lungs
8. trachea
9. lungs
10. alveoli
J. Additional activities for
application for remediation
(EXTEND)
Assignment to be submitted next meeting.
Essay:
In a 1 whole sheet of pad paper/bond paper answer the question
briefly and concisely:
1. List at least three (3) respiratory diseases and include its
symptoms, treatment and prevention.
Scoring Rubric
Criteria Excellent
4
Satisfactory
3
Fair
2
Needs
Improvement
1
Content
and
Accuracy
Organizati
on of ideas
Neatness
Timeliness
V.REMARKS
VI.REFLECTIONS
A. No. of learners who
earned 80% in evaluation
B. No. of learners who
require additional activities
for remediation who scored
below 80%
C. Did the remedial lessons
work? No of learners who
have caught up with the
lesson

12. D. No. of learners who
continue to require
remediation
E. With of my teaching
strategies worked well? Why
did these works?
F. What difficulties did I
encounter which my
principal or superior can help
me solve?
G. What innovation or
localized materials did I
use/discover which I wish to
share with other teachers?
Prepared by: Checked and reviewed by: Noted: Approved by:
Aliah C. Mosquera Shannon L. Nietes Monalie C. Saylo Van Helen S. Cuaderes
Student Teacher Faculty (CRANS) Course Facilitiator Principal