The lesson plan aims to teach students about the digestive system. It includes objectives, subject matter, and procedures. The procedures involve motivating students with a puzzle activity about the digestive system. The teacher will then present and discuss the key parts and functions, including digestion and absorption in the mouth, esophagus, stomach, small intestine, large intestine, and excretion. Students will work in groups to trace the food flow and discuss the importance. They will identify organs on a chart and answer evaluation questions to assess learning. For homework, students will research digestive disorders.

1. Lesson Plan in Biology
I. OBJECTIVES
At the end of the lesson the students will be
able to:
a. Identify the parts and function of Digestive System
b. Study the importance of Digestive System
c. Locate the parts of the Digestive System

2. II. SUBJECT MATTER
TOPIC : Digestive System
REFERENCES : Science & Tech. II e-Biology pp. 159-164
MATERIALS : Cut-pictures, flash card, picture of Digestive System
VALUES : Cooperation and Sportsmanship

3. III. PROCEDURE
TEACHER’S ACTIVITY STUDENT’S ACTIVITY
A. Preparatory Activity
1. Prayer One student will lead the class
Redly…
“Let us pray…In the name of the
Father, and of the Son and of the
Holy Spirit
2. Greetings Good Morning Tr. Precious
Good Morning Tr. Baby
Good Morning Sir Louie
Good Morning Sir Sam
Good Morning Madam Cantos
Good Morning Classmates

4. 3. Warm Up Song
Good morning Classmates now let
us welcome our practice Teacher,
Tr. Precious Tañoan
4. Drill
(The teacher will flash pictures of
Mitosis)
What phase does the following
event occur?
-Anaphase
-Metaphase
Review
(The teacher will show some words)
I have here words …Read it first
then find the corresponding
meaning on the board.

5. B. Lesson Proper
1. Motivation
PUZZLE
OK class proceed to your respective
group and area.
DIRECTIONS: Inside the envelop are
cut pictures…
Reform the pictures
*After solving the puzzle…
What is your idea about the picture
that you come up with?
(the student will proceed to their
group)
(Students will start solving the
puzzle.)
*It’s Digestive System
2. Presentation
Do you have any knowledge about
the Digestive System?
*It breaks down food

6. 3. Discussion
*Digestive system takes food into
the body. Who can explain which
means…
*It breaks down food into bits,
small enough to pass through the
cell membrane
*What do you call the process of
breaking down foods? After that
process the food is now put into the
blood.
*Do you have any idea on the
different parts of Digestive System?
Can you give one Redly?
The system responsible for food
after we eat is Digestive System.
*Digestion
*mouth
*esophagus
*small and large intestine

7. *And now let’s follow the food as it
passes the digestive system.
First food enters the mouth where it
is chewed by our teeth, wets by our
saliva a fluid produced by salivary
gland that contains PYTALIN an
enzyme that speeds up break down
of starch into sugar.
From the mouth food pass through
the ESOPHAGUS which transact
food from the mouth to the stomach
by a movement called PERISTALSIS.

8. *From the esophagus food enters
to the STOMACH through a ring
shaped muscle called CARDIAC
sphincter. Peristalsis mixed food
with gastric juices that will result in
the churned semi liquid called
CHYME. The chime leaves the
stomach through pyloric sphincter
and enters SMALL INTESTINE. The
small intestine signal the pancreas
to produce pancreatic juices and
gall bladder to release bile.

9. Pancreatic juices aids in digestion
of protein, carbohydrates and fats.
Bile is produced in the liver and
stored in the GALL BLADDER. It
break down fats into smaller
droplets.
What organ produces bile?
How about the one that stores bile?
After digestion absorption will take
place.
What are the substance that was
absorbed by small intestine?
*liver
*gall bladder
*Nutrients

10. Small intestines the remains of the
digestion and absorption are now
enters the LARGE INTESTINE where
absorption of water occurs. The
remains after water has been
absorbed are now called STOOL or
FECES then it will be stored in the
rectum then excrete to the anus.
4. Generalization
Form your group again…
Study the picture or puzzle that
you’ve solve earlier. Trace the flow
of food in the Digestive System and
give its importance then discuss it
in front.
The leader will be the one to
discuss.
Students will proceed to their
group…
Discuss the process with their
group mates
Present the flow of Digestive
System in front

11. 5. Application
Identify the organ that is being
described then point the specific
organ on the chart.
6. Evaluation
Identification: Identify the following
statement. Write your answer on
your paper.
1. It is the enzyme that is present
in our saliva.
2. It produces the bile.
3. It stores the bile.
4. It is the remains of Digestion
after absorption of water.
5. It is the absorption of water
takes place.

12. IV. Agreement
Make a research about the different
Digestive disorders.
Write it your assignment notebook.