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Amobea
Euglena
Volvox
Paramecium
Grade level: 7th grade
Subject: Science
Lesson Topic: Euglena
Teacher: Lusk
Date: October 31st, 2012
Stage 1 – Desired Results
Standards (CCS/ES):
7.L.1.1: Compare the structures and life
functions of single-celled organisms that carry
out all of the basic functions of life including:
euglena, ameoba, paramecium, and volvox.
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Key Ideas from the Standards:
Living things must be organized, have the
ability to develop and grow, the ability to
respond to the environment and the ability to
reproduce.
Even the simplest organisms have parts which
enable them to move, take in food, to reproduce
and to detect the environment that they are in.
Movement: Euglena moves by a flagellum,
amoeba moves by cytoplasmic streaming,
paracecium move by cilia and volvoxs move
with cilia.
Organisms are living if
Vocabulary:
Euglena
Flagellum
What will the students be able to do?
SWBAT evaluate using microscopes whether the
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organism they are looking at is an euglena or another
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protist.
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Sources/Materials/Technology:
__ __Literary Text:
____ Information:
__ __Art:
__X__Technology: Microscopes
Formal:
Project
Stage 2 – Assessment Evidence
Informal:
Lab and lab write-up
Stage 3 – Opening Activities
Warm Up: (10 minutes)
1. How does an amoeba move?
2. How does an amoeba eat?
3. Is an amoeba plant like or animal like?
Stage 4- Learning Plan
Independent practice: “YOU DO” (10 minutes nest day)
 Students will read an article about euglenas and then write bolded words down in their notebooks.
Lesson Focus: “I DO” (10 minutes)
 Teacher will introduce the lab
Guided Practice “WE DO” (50 mins)
 Students will be going into the lab.
 Using microscopes, students will be viewing euglena slides and identifying if they can see them or not.
Independent practice “YOU DO” (8 mins)
 Students will create a venn-diagram comparing and contrasting the organisms that they looked at.
Protist lab
Materials:
 Microscope
 Protist slides
 Petri dish
 Pipette
 Pond water
Procedure:
1. Take a sample of water and place it in your Petri dish. Get 2-3 pipettes full.
2. Using your microscopes, take a look at what might be in the water. You need to
be VERY patient looking around. Find a spot where you see some “stuff,” be still and see if
anything moves.
3. Now it’s time to look more closely. Make observations about the organisms you
see. What size are they? Do they move? If so, how? Are they any particular
color? If so, what might this tell you?
4. You may wish to look at your sample more closely. You can do this with a
depressed slide and a cover slip. Use the x4 or x10 power on your microscope.
5. Prepared slides of some protists are available on the front table. Handle them
With care and please return them when you are finished. Look at a minimum of 3 prepared
slides. If needed, they may be used for your sketches if you were unable to find protists in your
water samples.
6. To the best of your ability, sketch at least 3 protists below in the circles.
Questions:
 Did your organisms move? If so, how?
 Were your organisms a particular color? What does their color suggest in terms of how they
obtain food?