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November 2012
4th Grade
Title: Learning about different Blood Types
Materials needed: (Everything you need for the lesson)
-21 worksheets, pencils
-2 rolls of paper towels
-80 small Dixie cups (16 for each group – filled with water – 4 for each blood type)
-blue food coloring
-red food coloring
Resources : (Where did you get the (idea) activity?)
I originally thought of the idea of mixing liquids together to teach the kids about which
blood types are compatible and which are not, and then found the following website that
gave an experiment similar to what I was thinking of:
http://lessonplanspage.com/sciencepebloodtypecompatibilitydemonstration512-htm/. I
used the main idea of this experiment – using food color to represent different blood
types, and having the kids mix them together to see which are compatible and which
are not – but simplified the experiment in order to fit my students’ needs.
Objective: (What should the students know or be able to do by the end of the lesson?)
By the end of the lesson, students will be able to verbally identify which blood types can
mix with each other, and which blood types cannot mix with each other.
Goals: 1) I will use the scientific method to teach my students about the human body. 2)
I will teach my students about a specific aspect of the human body and how it varies
among people. 3) I will incorporate more LEMOV techniques into my teaching.
Procedures: (Step by step description of what you and the students are doing. Include
time estimations for steps.)
I. Opening: (5-7 mins.)
-HOOK – raise of hands for the students who scraped their knee or cut themselves
before
-“Okay, good. So you all know the color of our blood is red. Why do you think it is red?”
WAIT TIME
-Ask students what they know about our blood? Is it just liquid floating around? What
does it carry? RIGHT IS RIGHT
-have the students copy down short definitions for the components of blood on their
worksheets BOARD=PAPER
1. Red Blood Cell- carry hemoglobin that delivers oxygen
2. White Blood Cell- fight infection
3. Platelets- help blood clot
4. Plasma- yellowish liquid that carries the red blood cells, nutrients, and waste
-explain to the students that even though everyone’s blood has these same 4
components, we all have a different blood type.
-Ask students if their parents ever had to give blood – explain to the students that it is
important to know our blood type depending on what it is, we can only give to certain
blood types or receive from certain blood types
-we will fill in the 4 blood types on our worksheets BOARD=PAPER
-I will ask a student to read our question for the day
-I will give students 3 minutes to think of a hypothesis and write it down – 3 students will
share their hypotheses – COLD CALL
II. Activity (25-28 mins.)
-I will explain the experiment to the students & demonstrate (pretend to use everything)
I DO
-there will be 5 groups of 4 students, and each group will receive 16 cups
-all 16 cups will be filled with water (either by Mr. Koehler and me or students)
-4 cups will receive 1 drop of red food coloring, another 4 will receive 1 drop of
blue food coloring, another 4 will receive 1 drop of red AND blue, and the remaining 4
will not receive any food coloring. The red water will represent blood type A, the blue
water will represent blood type B, the purple will represent blood type AB, and the clear
water will represent blood type O
-Students will use the four cups of A blood type to mix an “A” cup with a “B,”
“AB,” and “O.” They will record on their charts whether or not these blood types are
compatible by observing whether or not the color changes when the two solutions are
mixed. They will mark “YES” if the color did change and “NO” if it did not on the
appropriate space of the chart.
-Students will repeat this step with the three other blood types – B, AB, and O.
Students will complete their charts in the same way as described above.
-I will have students count off by 5’s, and will have each group go to a designated place
in the room. One person will come to the back to gather supplies
-My colleague and I will fill up the cups with water. Perhaps I can give each group a
water bottle or two and they can fill their cups up. The cups will be less than halfway full.
-The students will share the food coloring and put the appropriate colors in their cups to
set up for their experiment.
-Students will conduct the experiment YOU DO. I will CIRCULATE to make sure
everyone understands what he/she is doing, and if everyone is on task, doing what
he/she is supposed to do.
III. Closing/Wrap Up: (10 mins.)
-go over the data as a class
-take 3 minutes to write down a conclusion – ask for some volunteers to share their
conclusion
-split up the follow-up questions into the groups, and have each group share the answer
to their assigned question
Student Assessment: (How do you know the objectives were met?)
-did the students understand the activity and did they enjoy it? CIRCULATE
-were they able to distinguish between the blood types that can and cannot mix with
each other? – verbal and written
Self-Assessment: (What went well/What needs improvement?)
-how was the timing of the lesson? Were we able to get through everything?
-was the activity too hard or too easy for the students?
-were the students able to set up the experiment properly and follow the steps
correctly?
Name: ______________________________
Date: _________________
Learning About Different Blood Types
What is our blood made of?
1. Red Blood Cells - ____________________________________________________.
2. White Blood Cells - ___________________________________________________.
3. Platelets - __________________________________________________________.
4. Plasma - ___________________________________________________________.
What are the four different blood types?
1. _________
3._________
2. _________
4. _________
QUESTION: Which blood types
can be mixed with each other and which
blood types cannot be mixed with each other?
HYPOTHESIS:
___________________________________________________________________
____________________________________________________________________
____________________________________________________________________.
Gather MATERIALS & perform EXPERIMENT
Part 1. Setting up for your experiment
1. Fill your 16 cups half-full with water.
2. Put ONE drop of red food coloring into four cups.
3. Put ONE drop of blue food coloring into four cups.
4. Put ONE drop of blue and red food coloring into four cups.
5. The four remaining cups should not have any food coloring.
* The RED water will represent Blood Type A
* The BLUE water will represent Blood Type B
* The PURPLE water will represent Blood Type AB
* The CLEAR water will present Blood Type O
Part 2. Performing your experiment.
1. Pour one cup of Blood Type A (red) into one cup of Blood Type A (red). Record color
on chart.
2. Pour one cup of Blood Type A (red) into one cup of Blood Type B (blue). Write YES
on the chart if the color changes and NO on the chart if it does not change.
3. Pour one cup of Blood Type A (red) into one cup of Blood Type AB (purple). Write
YES on the chart if the color changes and NO on the chart if it does not change.
4. Pour one cup of Blood Type A (red) into one cup of Blood Type O (clear). Write YES
on the chart if the color changes and NO on the chart if it does not change.
*Do this for the rest of your blood types (B, AB, and O).
-mix B with A, B, AB, and O
-mix AB with A, B, AB, and O
-mix O with A, B, AB, and O
CONCLUSION: _________________________________________________________
______________________________________________________________________
_____________________________________________________________________.
Follow-up Questions:
1. Why do we have different blood types? Do we get to pick these blood types when we
are born? How do we get them?
2. Which type of blood can give to all blood types? Explain your reasoning.
3. Which type of blood can receive all blood types? Explain your reasoning.
4. Mary is very sick in the hospital and the Doctor told her that she is losing a lot of
blood. Mary’s blood is type A. Annie, Mary’s sister, has blood type A, and Jack, Mary’s
brother, is blood type B. Can Mary receive blood from Annie? Can Mary receive blood
from Jack? Why or why not?
5. Jessica gave blood to her sister, Lauren. Jessica is blood type O. Which blood types
can Lauren possibly have?