Download Lesson: 45 - 90 minutes Project: One

Lesson: 45 - 90 minutes
Project: One - two weeks
Objectives:
1. Students will be introduced to red blood cells, white blood cells, platelets, plasma
and to each of their functions in the human body.
2. Students will be introduced to the four different blood types.
3. Students will learn how to determine a person’s blood type by slide typing.
4. Students will learn about different types of donations.
5. Students will investigate further into blood banking and present their findings to
their peers.
Materials:
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Computer
Speakers
Projector
My Blood, Your Blood PowerPoint
5-10 silver wrapped Hershey’s Kisses
20-30 mini Twix candy bars
5000 red wrapped Hershey’s Kisses
12 one pint jars
Red food coloring
Blue food coloring
4 cups
Label the heart worksheet
Blank paper to hand out to class
Easel/paper/markers (you will need something to draw on – whiteboard will do)
My Blood, Your Blood Educational Video
Teacher packet
HS Brochures and 16 year old parental permission forms.
The intent of this lesson is for the District Community Development Coordinator to
present the 90 minute lesson and present project options. The teacher is intended to
provide time for the students to complete their projects during class and present their
findings.
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Lesson:
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Introduction
PowerPoint presentation
ABO Slide Typing
My Blood, Your Blood video
Project options
5 minutes
45 minutes
25 minutes
33 minutes
15 minutes
Taking the presentation step-by-step. . .
*Note: You will need to set up your presentation at least 30 minutes before the
presentation begins. Make sure the DVD works and is ready to play. Make sure candy is
on the table in open containers. Fill one pint jar half way with water, the rest fill to the
top with water and then put red food coloring in each jar and then seal them back. Put the
jars under the presentation table or off to the side so that the students cannot see them, but
they are reachable for your demonstration. Keep a sheet of paper or set up a piece of
poster board for all questions you are not able to answer. They are things you can have
the students investigate or you can investigate and send responses to the teacher.
Slide One – Introduction
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Introduce self and tell a little about position
Question: Has anyone in class received blood – raise hand.
Question: Has anyone in his/her family received blood – raise hand.
Question: Easy one – Why is blood important?
Why LifeSouth is in your area.
Talk about what they are about to learn and why important
PowerPoint:
Slide Two – What is in a drop of blood?
Did you know: Did you know that when you give blood that a person actually does not
directly receive the blood you give? It is broken down into what we call “components”
and depending on what someone needs, that is what they get. So, what is in a drop of
blood?
Click - Red blood cells
Say: There are 5,000,000 red blood cells in a drop of blood.
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Action: Pick up bag of Hershey’s Kisses in the red wrapper.
Say: If these Hershey’s Kisses were red blood cells, this would represent how many
would be in a drop of blood.
Action: Drop entire bag of red blood cells on the table.
Click - White Blood Cells
Say: There are 5,000 to 10,000 white blood cells in a drop of blood.
Action: Pick up bag of silver wrapped Hershey’s Kisses. Take out 5 – 10 kisses from
the bag.
Say: If these were white blood cells, this is how many white blood cells would be in a
drop of blood. (Drop the white blood cells on red blood cells.)
Click - Platelets
Say: There are 200,000 to 300,000 platelets in a drop of blood.
Action: Pick up bag of twix. Take out about 20 – 30 twix.
Say: If these twix were platelets, then this is how many platelets would be in a drop of
blood. (Drop platelets on pile of red blood cells and white blood cells.)
Click – Plasma
Say: And all of these parts are suspended in a watery protein salt solution called plasma So all of these components are floating in that substance.
Now. . . what do each of these components do, and why are they important?
Slide Three – Slide Six (Red Blood Cells to Plasma)
Talk about the information on the slide.
Slide Seven – How does blood get around the body?
Click – The lungs
Say: The lungs supply the oxygen to the blood that is carried throughout your body.
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Click – The heart
Say: The heart serves as a pump that pumps the blood around your body in pulses.
Click – The Arteries
Say: Carry the blood that has oxygen away from the heart to all different parts of your
body. The Arteries are in red.
Remember this because I may ask you about this later. . .
Click – The Capillaries
Say: The thin walls of capillaries allow nutrients and other substances to pass in and out.
Click – The Veins
Say: Once the capillaries have allowed the nutrients and oxygen to get to the parts of the
body that need them, the veins (in blue) carry the blood that has given away its oxygen
and nutrients back to the lungs and heart to pick up nutrients and oxygen.
So, what carries oxygenated blood throughout the body? Answer – Arteries
What carries deoxygenated blood back to the heart?
Answer - Veins
Slide Eight – What I will always remember and cherish about the heart.
Action: Hand out blank sheets of paper to class.
Say: Please write at the top of the paper, “What I will always remember and cherish
about the heart” because the heart is a very special organ that we should understand and
take care of.
Slide Nine – The heart.
*Note: We are just going to restate in very simple terms what the link teaches us about
how the heart works. (If you ever get lost, just follow the prompt.)
Say: Okay. . . we are going to learn about the heart. This site is going to take us step-bystep to explain how the heart works. After this presentation, you all are going to be ready
for med school since I know all of you are going to be doctors. But don’t worry, if you
don’t understand all that they say, I will explain.
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Click – website demonstration
Click - #1 explaination
Demonstration: (The color blue indicates what you need to draw step by step.)
So, we need to start with the heart. Please draw a heart in the middle of your paper. I am
going to draw a heart on the board (or easel – whatever you have).
Now, as the demonstration said, we have two sides of the heart that are not connected.
The left and right. So, we are going to draw a line straight through the middle of the
heart since these sides do not connect. Then label the right side of the heart as the left
and left side as the right since we are looking at the sheet of paper.
Right
Left
Next, we are going to draw horizontally through the middle since the heart has four
chambers.
Right
Left
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The top part of the heart is called the left and right atrium. The bottom part is called the
left and right ventricle.
Right Atrium
Left Atrium
Right Ventricle
Left Ventricle
And that is all the first slide had to say. . .
Click - #2
Oxygenated blood come from the lungs and is emptied into the left atrium through the
pulmonary veins.
Say: For a red blood cell (get a red Hershey’s Kiss) tell me, why it is strange that the
oxygenated blood is flowing through the pulmonary veins?
Answer – Because veins carry deoxygenated blood back to the heart. They are the only
veins that carry oxygenated blood.
Let’s draw.
Pulmonary Veins
Right Atrium
Left Atrium
Right Ventricle
Pulmonary Veins
Left Ventricle
Lung
Lung
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The pulmonary veins lead from the lungs to both sides of the heart, but dump the
oxygenated blood into the left atrium.
Click - #3
The blood flows from the left atrium to the left ventricle.
Pulmonary Veins
Right Atrium
Left Atrium
Right Ventricle
Pulmonary Veins
Left Ventricle
Lung
Lung
Click - #4
The left ventricle contracts and pushes the blood out of the largest artery in the body – the
aorta. *Warning* may ask this again. . .
Say: For THREE red blood cells (get red Hershey’s Kisses ready) Why is the aorta
an artery? Answer – because it carries oxygenated blood to the body.
AORTA
Pulmonary Veins
Right Atrium
Left Atrium
Right Ventricle
Pulmonary Veins
Left Ventricle
Lung
Lung
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Click - #7
*Note* You do not need to click #s 5 and 6. Not information the students need.
After the blood goes through the capillaries and gets rid of all oxygen and nutrients, it
flows into the veins and then back to the heart. It enters into the right atrium.
Say: For a white blood cell and platelet (grab silver coated Hershey’s Kiss a twix to
give to a student that answers) What part of the heart receives blood and what part
pushes it out? Answer – the top part, or atria (plural way to say it), receive the blood and
the bottom part, or ventricles, push it out.
AORTA
Pulmonary Veins
Left Atrium
Right Atrium
Right Ventricle
Pulmonary Veins
Left Ventricle
Lung
Lung
Deoxygenated blood
from veins go into right atrium.
Click - #8
Deoxygenated blood (that has picked up carbon dioxide on its way back to the heart)
flows into the right ventricle from the right atrium.
AORTA
Pulmonary Veins
Lung
Deoxygenated blood
Right Atrium
Left Atrium
Right Ventricle
Left Ventricle
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Pulmonary Veins
Lung
Click - #9
The deoxygenated blood now is pushed from the right ventricle to the lungs where it
drops off the carbon dioxide and replenishes itself with oxygen to start the process all
over again.
Say: For TWO red blood cells, TWO white blood cells and a platelet (Hershey’s
Kisses and twix) Who can tell me how long it takes the red blood cells to complete this
whole process? Answer – 45 to 60 seconds.
Say: For TWO platelets (twix) Who can tell me how many days the red blood cells stay
alive to complete this process over and over again? Answer – 100 to 120 days.
So, let’s add our last piece of the puzzle in seeing how the heart works to keep us alive.
AORTA
Pulmonary Veins
Left Atrium
Right Atrium
Pulmonary Veins
Right Ventricle
Left Ventricle
Lung
Lung
Deoxygenated blood
Click - #10
Say: And here is the demonstration for how it all works.
Slide Ten – The handout
Action: Hand out heart diagram for students to fill out.
Say: You have 5 minutes to see if you can fill this form out. Have fun!
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Slide Ten – The handout continued. . .
Give the students 5 minutes to fill out their sheet. It does not matter if they work together
or talk. You want it to be a relaxed atmosphere for them.
After 5 minutes (or when it seems like everyone has completed them), go through the
answers. They are listed as you click through the slide.
*Note* You may want to tell them that there are two valves on the worksheet. They will
get confused.
Slide Eleven – Venice and circulatory system, same thing?
Click each section individually and explain each part as it is on the slide.
Slide Twelve – Slide Fourteen - There are different types of donations?
Say: Now that we know what blood is made of, what each of those components do and
how they get around the body, it is time to understand what type of donations LifeSouth
offers in order to get those components to save the lives of others.
Go through each one of these slides explaining what is on the slide. If you have any
questions about these slides, please contact Meghan Nodurft-Froman at
[email protected], and I will be sure to answer any questions you have or
students ask.
Slide Fifteen – Fast Facts
Read through information given one slide at a time.
Slide Sixteen – Movie Time!
Show My Blood, Your Blood High School video. Video last 33 minutes. If time is left
at the end of the movie, have students tell you what they learned from the video for
candy. I would also ask them questions from the presentation for candy.
The end!
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