The document provides details of a lesson plan about the digestive system taught at Philippine Normal University. It includes objectives, preliminaries like an icebreaker game, lesson proper discussing each part of the digestive system and their functions, an assessment quiz, and enrichment activities as homework. The lesson aims to teach students the parts and processes of digestion, locate organs in the digestive system, and understand the importance of the system.

1. Philippine Normal University
College of Teacher Development
Faculty of Education Sciences
Manila
IN PARTIAL FULFILLMENT OF THE REQUIREMENTS
IN EDUCATION 4: PRINCIPLES OF TEACHING
A DETAILED LESSON PLAN IN SCIENCE:
THE DIGESTIVE PROCESS
PREPARED BY:
BAMBICO, ROSE ANN
BATHAN, WARREN JAY
DELOS REYES, MARIA LAURA
CTP 2015

2. I. OBJECTIVES
A. At the end of the lesson,the students will be able to:
1. List down the parts and their functions in the digestive process
2. Locate the parts of the digestive system
3. Enumerate the importance of the digestive system
II. PRELIMINARIES
Teacher’s Activity Student’s Activity
GREETING
“Good morning class.”
PRAYER
“Okay class. Mr./Ms.___, please lead
us in prayer.”
“Good morning teachers!”
“Classmates are you ready to pray?”
“Yes we are.”
“Lord, wethank You for this day that you have given. Please
help us understand our lessonsand guide us in everything
we do. Thank You once again, Lord. In Jesus name we pray,
Amen.”
MOTIVATIONAL ACTIVITY
Food Roulette (Game of Food) Students willbe divided into 5 groups – They will count
from 1-5 then they willbe group according to the number
assigned to them. Theywill be arranged like in this
diagram:
BLACK BOARD
Group 1
Group 2
Group 3
Group 5
Group 4

3. Mechanics:
Rules:
Trial:
Teacher willsay … “Fried Chicken”
Round 1.
I was doing house chores and I think
of … “Jackfruit”.
Round 2.
One Student will read the Mechanics:
1. Groupings
2. The Teacher willsay a Food Word and Group 1 will
say another food from the last letter of the food
given by the Teacher, Then Group 2 will say
another Food from the Last letter of the food given
by Group 1; Group 3 from Group 2; Group 4 from
Group 3; Group 5 from Group 4. (End)
3. Another Set willstart - same sequence as No. 2. It
will be 3 sets.
One student will read the Rules:
1. Each Group willbe given 3 seconds to answer.
2. Brand Name is not allowed but Proper noun will.
3. Beverage is allowed.
4. After Group 5, Teacher will begin another set.
5. The team/s who get/s the highest score willbe the
winner.
6. There will be three teachers who willbe the time
keeper and will help facilitate the game.
7. Price willbe given to a winner/s.
Group 1 willsay “Nuggets”.
Group 2 willsay “Soup”.
Group 3 willsay “Popcorn”.
Group 4 willsay “Nuts”.
Group 5 willsay “Suha”.
Group 1 willanswer “_________”.
Group 2 willanswer “_________”.
Group 3 willanswer “_________”.
Group 4 willanswer “_________”.
Group 5 willanswer “_________”.
Group 1 willanswer “_________”.

4. I went to Mall, while driving I am
thinking of … “Seafood Marinara”
for lunch.
Round 3.
I got hungry whileShopping and I
am thinking of … “Ice cream” for
merienda.
Are you Hungry now?
In a little whileit willbe lunch
already.
Group 2 willanswer “_________”.
Group 3 willanswer “_________”.
Group 4 willanswer “_________”.
Group 5 willanswer “_________”.
Group 1 willanswer “_________”.
Group 2 willanswer “_________”.
Group 3 willanswer “_________”.
Group 4 willanswer “_________”.
Group 5 willanswer “_________”.
Yes, we are!
III. LESSON PROPER
TEACHER ACTIVITY STUDENT ACTIVITY
PUZZLE
Thank you. Tr. Warren. Okay class.
Don’t return to your seats just yet.
Let’s do another activity. Here are 5
envelopes.
Choose one representative of your
group and proceed in front.
Choose one envelope. Then proceed
to your respective groups.
Now,open your envelopes and
identify the specific image and
discuss its function in 3minutes.
Okay, time is up! What have you
noticed with the pictures?
Yes. You have learned the following
parts in your previous year. Now will
(5 Students approaches in front)
(Students return to their groups with own envelopes)
(Student discussion)
They are parts of the digestive system.

5. discuss the Digestive process in
detail. So with that what is the
function of the digestive system?
Yes. The digestive system Is
responsible for breakdown and
absorption of nutrients from food
thereby bringing energy for the
body. So now, One representative
per group willdiscuss their
collaboration in front. Who among
you have the mouth image?
Okay! Be the first to discussyour
work.
Good job! Yes!
The mouth breaks down food into
bits to facilitate transfer thru the
esophagus to the stomach.This is a
process called mastication. It also
servesas the initial stage of
digestion with the enzyme
converting carbohydrates. What is
that enzyme?
The system responsible for food after we eat isDigestive
System.”
We have have it!
The mouth offers an entry of food into the body. It is also
where the mechanical breakdown begins.
Salivary amylase!
And now let’s follow the food as it
passes through the digestive system.
From the mouth, food passes
through the? What connects the
mouth and stomach?
Yes. And who have the esophagus?
Can you share your ideas?
That’s correct! So what do we call
that rhythmic movement?
Esophagus!
The esophagus transact food from the mouth to the
stomach by a movement.
Peristalsis!
That’s right. So through peristalsis,
the food,or now called chyme, goes
through the cardiac sphincter, a
ring-shaped musclewhere food
enters from esophagus to stomach
that prevents food reflux. The food
then is transported to the stomach.
So again, what is that muscle that

6. prevent reflux?
Correct. Now, whichgroup now
hold the stomach? Can you discussit
in front?
Yes that’s correct. Now,where does
the food go after passing the
stomach?
Now who among you the small
intestine picture? Please go in front
and discuss.
Yes, that’s correct. You may return
to your seat. Furthurmore in the
small intestine, bile acts on the food.
Bile is produced in the liver and
stored in the gallbladder. It break
down fats into smaller droplets.
What organ produces bile?
How about the one that stores bile?
The cardiac sphincter!
The stomach further forms the food into smaller portions
and contains HCl that aids digestion and destroys the
bacteria present in the ingested food. It also has pepsin the
breaksdown protein into smaller forms.
Small intestines!
The small intestine is where pancreatic juices aids in
digestion of protein, carbohydrates and fats. It is also the
longest part of the digestive system.
Liver!
Gallbladder!
That’s correct! Small intestinesthe
remains of the digestion and
absorption are now enters the large
intestine who happens to be in the
last group.
Yes, that true. You may now return
to your seat. The large intestine is
composed by the ascending,
transverse and descending colon,
the appendix, anus and rectum. It is
alsowhere absorption of water
occurs. The remains after water has
been absorbed are now called
STOOL or FECES then it willbe
stored in the rectum then excrete to
The large intestine is composed by the ascending,
transverse and descending colon, the anus and rectum. It is
also wherethe appendix is. It also contains the feces ready
for excretion.

7. the anus.
So in summary, the digestive system
is composed of?
All are whichfunction to do what?
Very good! So now, I willturn you
over to Tr. Rose for the next activity.
The mouth, esophagus, stomach, large and small intestines!
They are responsible for breakdown and absorption of
nutrients from food thereby bringing energy for the body.
IV. ASSESSMENT AND EVALUATION
TEACHER’S ACTIVITY STUDENT’S ACTIVITY
EXAM
Direction: Choose the best answer and
write the letter on the space provided.
______ 1. Digestion is ___________.
a. The breakdown of food into
smaller substance that can be
absorbed by the body
b. The breakdown of food in the
mouth which contains salivary
amylase
c. The breakdown of starches into
simple sugars to be easily
swallowed in the esophagus
d. The breakdown of protein into
smaller peptides.
______ 2. It is where the process of
digestion begins.
a. Tongue
b. Teeth
c. Mouth
d. Esophagus
______ 3. The enzyme whichis
responsible for protein digestion.
a. Chyme
b. Salivary amylase
c. Pepsin
d. Hydrochloric acid
______ 4. A ring-shaped muscle where
food enters from esophagus to
stomach.
One student will read the directions.
“Direction: Choose the best answer and write the
letter on the space provided.”
Students will be given 5 minutesto answer.

8. a. Pyloric sphincter
b. Cardiac sphincter
c. Epiglottis
d. Pyloric valve
______ 5. Where does the absorption of
water occur?
a. Stomach
b. Liver
c. Small intestine
d. Large intestine
CHECKING THE QUIZ
Exchange papers with your seatmates.
Who wants to read and answer number
1?
What’s the answer?
“CORRECT!”
Alright number 2.
(Teacher callsanother student)
Okay! Great! Next let’s havenumber 3 .
(Teacher callsa student)
Students raise their hands.
“Ma’m”
1. Digestion is ___________.
a. The breakdown of food into smaller substance
that can be absorbed by the body
b. The breakdown of food in the mouth which
contains salivary amylase
c. The breakdown of starches into simple sugars
to be easily swallowed in the esophagus
d. The breakdown of protein into smaller
peptides.
The answer is A.
“Ma’m” (another student raiseshis/her hand)
2. It is wherethe process of digestion begins.
a. Tongue
b. Teeth
c. Mouth
d. Esophagus
The answer is C.
“Ma’am”(another student raises his/her hand)
3. The enzyme which is responsible for protein
digestion.
a. Chyme
b. Salivary amylase

9. That isRight! It’s C.
Let’s continuewith number 4.
(Teacher callsanother student)
Okay! Correct!
Let’s have the last number.
(Teacher callsanother student)
Definitelyright.
That’sall. Anyone has a question?
Alright class, who got 5?
Okay pass your papers.
“Pass your papers according to your
scores.”
“5”
“4”
“3”
“2”
“1”
“0”
c. Pepsin
d. Hydrochloric acid
The answer is C.
“Ma’am” (students raise hands)
4. A ring-shaped musclewhere food enters from
esophagus to stomach.
a. Pyloric sphincter
b. Cardiac sphincter
c. Epiglottis
d. Pyloric valve
The answer is B.
“Ma’am” (Students raise hands)
5. Where does the absorption of water occur?
a. Stomach
b. Liver
c. Small intestine
d. Large intestine
The answer is D.
Students raise their hands.

10. V. ENRICHMENT
TEACHER’S ACTIVITY STUDENT’S ACTIVITY
“Your assignment for tomorrow.”
Please read….
Number 1
Number 2
“List down three (3) digestive system disorders. Write
down the causes and the wayson how to treat them.
“Bring the following: cotton balls,ice candy plastic, two
pieces of straw,rubber bands