Detailed Lesson Plan in Science 10

Detailed Lesson Plan in Science 10
At the end of 60 minutes, the students are expected to achieve 75% level of proficiency of the following:
explain how respiratory system works;
describe the parts and functions of respiratory system where air passes during inhalation and exhalation;
demonstrate appreciation on the importance of taking good care of the lungs; and
use a model to demonstrate inhalation and exhalation

Subject Matter
Topic: Human Respiratory System
References: Microsoft Student with Encarta Premium 2009 DVD, Fallaria, R. Apolinario,
N., Ronquillo, J. (2006). Science Spectrum Textbook. pp. 25-30
Today and Tomorrow: Biology for Non-Science Majors. (n.d.).pp 236-237
Materials: Puzzle, Projector, reading materials or handouts, Illustration of the
Respiratory System, task cards, pen marker, manila paper, paper arrows
Teaching Methods: Inductive Method, KWL Chart, Group Work Strategy (The Path of Air
in my Body, How do I Breathe, Picture Puzzle)
Science Concept: Respiratory System is a biological system that involves in the
exchange of oxygen and carbon dioxide between organisms and the environment. It
consists of seven main parts: nasal cavity, pharynx, larynx, trachea, bronchi,
bronchioles, and alveoli. Air enters through the nasal cavity down to the pharynx and
to the trachea until it reaches the lungs and it is carried by blood to the different parts
of the body.

Learning Activities
Teacher's Activity Learners' Activity
Preliminary Activities
Prayer
Greetings
Good morning class. - Good morning Teacher Daniah.
Good morning classmates.
Checking of Attendance
Is anyone absent today? - None teacher.
Setting of Classroom standards
What are the important rules
to be followed while the class
is going on? - Listen when somebody is talking.
- Raise our right hand if we want to answer.
- Work cooperatively and harmoniously.
Passing/Checking of Assignment
Directions: Enumerate, describe
and give the function of sex
hormones. - Testosterone – a male sex hormone secreted
by interstitial cells of mature testes;
encourages development of male
secondary characteristics and stimulates
the development of sperm.
- Progesterone – stimulates the thickening of
uterus lining that helps prepare for
implantation of a fertilized ovum and the
mammary gland for milk secretion.
- Estrogen – female sex hormones produced
by the ovaries that govern the development of oocyte.
Review
What is Reproductive System? - Reproductive System is the part of the body
that is responsible for reproducing
offspring or children.
What are the major function of
the male reproductive system? - The major function of the male reproductive
system is to produce, store and transport
sperm cells.
What are the major functions of
the female reproductive system? - The female reproductive system produces
and stores egg cell. It also nourishes and
protects the fertilized egg cell. Its other
function is to regulate the menstrual cycle
and to maintain the female secondary sex
characteristics.
Motivation
Everybody look at the picture.
What do you see in the picture?
Group Work (Picture Puzzle)
Directions:
Group yourselves into three.
Assemble the picture puzzle.
Stick the pictures on a sheet of
manila paper.
Label the parts that you know.
Work harmoniously and
cooperatively.
You are given 2 minutes to
do the task.
Display your outputs on the
board. Say something about it.
Unlocking of Difficulties
accumulation amplitude trachealymphocytes antigens expectoratedcartilaginous windpipe accentuatedlymphatic tissueaccumulation amplitude trachealymphocytes antigens expectoratedcartilaginous windpipe accentuatedlymphatic tissueFill in the blank with the best
word found in the box.
accumulation amplitude trachea
lymphocytes antigens expectorated
cartilaginous windpipe accentuated
lymphatic tissue
accumulation amplitude trachea
lymphocytes antigens expectorated
cartilaginous windpipe accentuated
lymphatic tissue



A structure that is composed of cartilage
is called . - cartilaginous
A specialized form of reticular tissue that
contains large number of - lymphocytes
is called . - lymphatic system
The tonsils that contain a type of white
blood cells that protect against invasion
of foreign that are inhaled. - antigens
The cilia beat upward, carrying mucus,
dust and occasionally bits of food that
went the wrong way in the , - trachea
commonly called , where - windpipe
the can be swallowed - accumulation
or . - expectorated
At the time of puberty, the growth of vocal
cords are more rapid and in the - accentuated
male than in the female, causing the male
to have a more prominent Adam's apple
and a deeper voice. The loudness of the
voice depends upon the of the - amplitude
vibrations that is, the degree to which
vocal cords vibrate.

Developmental Activities
Presentation (KWL Chart)
Everybody look at the poster of
the respiratory system. What is
your idea about it?
Activity 1: "I Want to Know about..."
Directions:
Fill out the first and second
column of the KWL Chart.
Write what you know and what
you wanted to know about the
topic.
Leave blank the last column
because you will fill it out after
the lesson is done.
You are given 5 minutes to
think and share with your group.
Comparison and Abstraction
- Where do you think the air first
enters the body?
- I have a short video clip here
and watch closely to it. Observe
where the air travels inside the body.
Activity 2: "The Path of Air in my Body"
Directions:
Assemble the puzzle pieces
provided to your group. Identify it.
Stick the assembled pictures on
the sheet of manila paper.
Follow the flow of air inhaled and
exhaled using the appropriate
paper arrows (Inhaled gas-red;
Exhaled gas – blue). Label the
parts in sequence.
You are given 8 minutes to finish
the task. Select one from your
group to share your work with the
class and cooperate.
*Presentation of outputs
*Lecturette
What is respiratory system? - The respiratory system involves in the intake
and exchange of oxygen and carbon dioxide
between the organism and the environment.
What are the different parts
of respiratory system?
Give its function. - The different parts of respiratory system are:
Nasal Cavity – air passes on its way to and from the pharynx
Pharynx – upper part of the throat and connects the nose and mouth to the larynx
Larynx – narrowest part of the respiratory system containing the vocal cords.
Trachea – a tube composed of incomplete cartilage rings and is located in the middle of the neck going to the chest.
Bronchi – two tubes which carry air from the trachea to the inner recesses of the lungs.
Bronchioles – very small branches of the bronchi.
Alveoli – groups of thousands of tiny air sacs at the end of the bronchioles.
What gas is inhaled? - The gas inhaled is oxygen.
What gas is exhaled? - The gas exhaled is carbon dioxide.
Where does gas exchange
happen? - It happens in the alveoli.
Why do we need to provide
the body with oxygen? - The cells of the body need oxygen to break
down and to release energy in food.
How do respiratory system
remove carbon dioxide from
the body? - During the breathing process, carbon dioxide
forms a gaseous waste product.
Generalization
The air enters through the nasal
cavity. It passes to a tube called
pharynx connecting the nose
down through the larynx. It then
goes down to the trachea, down
through the bronchi, a tube
going to the lungs. In the lungs,
the bronchi are branched into
smaller tubes called bronchioles,
ending in the air sacs called
alveoli.
Carbon dioxide on the other
hand is produced from all parts
of the body and is collected by
the blood that exits in the
opposite way.

Value infusion
Is respiratory system important? - Yes, teacher.
How will you take care of it? - We should love our body by practicing
personal hygiene, keeping fit, clean the home
environment, practice deep breathing
exercise, proper ventilation, staying free from
stress and feel happy.
What do you think will happen
if we will not take care of our
respiratory system? - If we will not take care of it, many respiratory
diseases will be acquired such as lung cancer,
pneumonia, asthma, bronchitis, tuberculosis
and many more.
What should we avoid to
maintain our respiratory system
healthy? - Let us avoid or stay away from people who
smoke.
- Avoid smoking and inhaling polluted air or
harmful foreign substances.
Closure Activity
Let us review the W column
and find out if all queries had
been addressed.
Do we have some more
clarifications or doubts?
If none, fill in the third column
on what have you learned
about the respiratory system.
You are given 3 minutes to write.

Evaluation
Multiple Choice: Read the questions carefully. Choose the letter of the best answer.
Write it on your paper.
Which of the following organs is/are responsible for the exchange of gases inside our body?
Ovary b. bones and muscles c. lungs d. alveoli
It is where the exchange of gases takes place.
trachea b. bronchi c. nasal cavity d. alveoli
Which of the following hold the lungs in place?
a. trachea b. bronchi c. nasal cavity d. alveoli
It is where the air enters and exits the body.
a. trachea b. bronchi c. nasal cavity d. alveoli
What do you call the tube-made of cartilage rings?
a. trachea b. bronchi c. nasal cavity d. alveoli

Assignment
Give at least 5 causes of different respiratory diseases and its treatments.


Prepared by:


DANIAH M. AMELLA
3-BSE-A (Bio)

Submitted to:


DR. MA. LEZEL P. PATARAY
Course Professor