2. STRATEGIC
INTERVENTION
MATERIALCIRCULATORY SYSTEM
Learning Area Elementary Science
Level Grade 6, Intermediate
Learning Objectives Identify the major parts of the circulatory system
Expected Outcomes * Describe the function of each part
* Label the parts of the heart
Science ProcessSkills observing, communicating, inferring, identifying,
discussing, evaluating
Keywords heart, chambers, atrium, ventricles, carciovascular
Author Kristine Joan DA. Barredo, Teacher II,
Tunasan Elementary School
Date June, 2011
Project Summary
Guide Card
Activity Card
Assessment Card
Enrichment Card
Reference Card
TRIVIA & Popquiz
3. Put your hands on
your chest.
How do you feel?
Why is your chest
beating faster?
GUIDE CARD
4. The human heart is a specialized, four-
chambered muscle that maintains the
blood flow in the circulatory system. It
lies immediately behind the sternum, or
the breastbone, and between the
lungs. The apex, or bottom of the
heart, is tilted to the left side. At
rest, the heart pumps about 59 cc (2
oz) of blood per beat and 5 l (5 qt) per
minute. During exercise it pumps 120-
220 cc (4-7.3 oz) of blood per beat and
20-30 l (21-32 qt) per minute. The adult
human heart is about the size of a fist
and weighs about 250-350 gm (9 oz).
GUIDE CARD
5. GUIDE CARD
The human heart has four
chambers, two superior atria and
two inferior ventricles. The atria are the
receiving chambers and the ventricles are
the discharging chambers. During
each cardiac cycle, the atria contract
first, forcing blood that has entered them into
their respective ventricles, then the
ventricles contract, forcing blood out of the
heart. The pathway of the blood consists of
a pulmonary circuit and a systemic
circuit[10] which function simultaneously.
Deoxygenated blood from the body flows via
the vena cava into the right atrium, which
pumps it through the tricuspid valve into
the right ventricle, whose subsequent
contraction forces it out through
the pulmonary valve into thepulmonary
arteries leading to the lungs.
Meanwhile, oxygenated blood returns from
the lungs through the pulmonary veins into
the left atrium, which pumps it through
the mitral valve into the left ventricle, whose
subsequent strong contraction forces it out
through the aortic valve to the aorta leading
to the systemic circulation.[
7. Major Parts of
the Circulatory
System
What is it like How it works
1. heart It is a heart-shaped
organ.
It is made-up of
muscles.
The heart pumps
blood.
2. Blood Red fluid inside the
body.
The blood brings
materials to the
different parts of the
body.
3.blood vessels They are tubes where
blood passes.
(They are the tubes
that serve as the
passageway of the
blood.)
GUIDE CARD
8. CIRCULATORY SYSTEM WORD FIND
ACTIVITY CARD #1
In this activity:
You need to find as
many words in the
puzzle.
9. CIRCULATORY SYSTEM BINGO
ACTIVITY CARD #2
In this activity:
You need to make a pattern ,it can
be a line, either
vertical, horizontal or diagonal.
The winner is determined when
the player completed the
winning bingo pattern which
states a brief description of
each word.
10. A Walk Through the Circulatory System
ACTIVITY CARD #2
In this activity:
You need to simulate the flow of blood
inside our body through a relay.
Materials
•5 inflated red balloons
•5 inflated blue balloons
•poster or drawing of the lungs
•playground chalk or masking tape
11. Fitness & Recovery Rates
ACTIVITY CARD #2
In this activity:
You will investigate how fast your
recovery rate and compare it with
your classmates
Materials
•Stopwatch
•Wooden stepping block or stairs
about 30cm high
What to do:
1. Ask your partner to count the number of times your heart
beats in 30 seconds. This will be your “resting rate”. Record
this in your table.
2. Let your partner count the number of times you breathe in
30 seconds. Again, record this date on the table.
3. Do step-ups in 3 minutes Ask your partner to time this
activity.
4. As soon as the 3-minute exercise is over, let your partner
get your pulse rate in 30 seconds. Mentally take note of the
number of breaths you make in the same 30-second
interval.
5. Repeat step 4 every minute until your pulse returns to
normal. Do not forget to record the results each time in
minutes.
Time of pulse rate was
taken
Rate in 30 second-interval
Pulse Breathing
Resting
Right after 3-min
exercise
+ 1-min after exercise
+ 2-min after exercise
+ 3-min after exercise
+ 4-min after exercise
Guide Questions:
•How long did it take your breathing to
return to its resting rate?
•How long did it take for your pulse to
return to resting rate?
•Compare your results with your
classmates.
•Who had the fastest recovery
rate?
•Who had the slowest recovery
rate?
Who among your classmates do
you think is the “fittest”? Why do
you say so?
12. Match Column A with Column B. Write the letter of the correct
answer.
Column A Column B
_____ 1. The transport system of the body that
moves the blood throughout the body.
a. Arteries
_____ 1. Blood cells that fight germs that enter the
body.
b. Blood
_____ 1. They are tube-like structures in the body
through which blood flows.
c. Blood vessels
_____ 1. The liquid vehicle that carries oxygen,
nutrients and other substances that
sustain life.
d. Circulatory system
_____ 1. They are blood vessels that carry food
nutrients and fresh oxygenated blood.
e. Heart
f. White blood cells
ASSESSMENT CARD
13. Fill in the blanks.
ASSESSMENT CARD
Major Parts of
the Circulatory
System
What is it like How it works
1. heart It is a heart-shaped
organ.
It is made-up of
muscles.
2. Blood Red fluid inside the
body.
3.blood vessels They are the tubes
that serve as the
passageway of the
blood.
14. Label the parts of the heart. Use the words listed in the word bank.
ASSESSMENT CARD
Word Bank
Aorta
right ventricle
right pulmonary artery
Superior vena cava
left ventricle
right pulmonary vein
Inferior vena cava
tricuspid valve
left pulmonary artery
Right atrium
mitral valve
left pulmonary vein
Left atrium
apex
15. Explain the anatomy of the Circulatory System
using the illustration of the heart below:
Use the diagram of the heart to trace the flow of
blood inside the heart starting from the Vena Cava.
ENRICHMENT
CARD
16. REFERENCE CARD
The circulatory system is a vast network of organs and
vessels that is responsible for the flow of blood, nutrients,
oxygen and other gases, and hormones to and from
cells. Without the circulatory system, the body would not
be able to fight disease or maintain a stable internal
environment — such as proper temperature and pH —
known as homeostasis.
Description of the circulatory system
While many view the circulatory system as simply a
highway for blood — it is also known as the
cardiovascular system — it is made up of three
independent systems that work together: the heart
(cardiovascular), lungs (pulmonary) and arteries, veins,
coronary and portal vessels (systemic).
17. Cruz, Juanita et al (2003) Into the Future:Science and
Health 6, p. 2-5
Carale, Lourdes R. Our Body’s Transportation, p. 20
Science Skillbook for Active Learners pp. 11-12
http://www.brown.edu/Courses/BI0020_Miller/week/11/C
hapter_44/Present/Animations/44_A02/44_A02s.html
http://sciencenetlinks.com/interactives/AllSystems.swf
http://www.brown.edu/Courses/BI0020_Miller/week/11/C
hapter_44/Present/Animations/44_A02/44_A02s.html
http://en.wikipedia.org/wiki/Heart
REFERENCE CARD
