Grade 5 Lesson 3
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Lesson Plan
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Student Activity Handout 1
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VISION-SETTING
Marlins Think Tank: Fifth Grade Science
Lesson Plan #3
OBJECTIVE.
KEY POINTS.
What is your objective? 
What knowledge and skills are embedded in the objective? 
SC.5.L.14.1 Identify the organs in the human body
and describe their functions, including the skin,
brain, heart, lungs, stomach, liver, intestines,
pancreas, muscles and skeleton, reproductive
organs, kidneys, bladder, and sensory organs.
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SWBAT explain the differences between the three
types of muscles and how they function during a
baseball game.
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There are three types of muscles.
Skeletal muscles (striated muscles):
muscles that you can control, which
allow you to move around; these
muscles are attached to bones by bands
called tendons
Smooth muscles (involuntary muscles):
muscles that you cannot control but that
work on their own to perform necessary
functions for your body
Cardiac muscles: muscles that cause
the heart to pump blood to different parts
of the body
ASSESSMENT.
Describe, briefly, what students will do to show you that they have mastered (or made progress toward) the objective. 
Students will answer questions using complete sentences to describe the differences between types of
muscles
OPENING (10 min.)
MATERIALS.
How will you communicate what is about to happen?  How will you communicate how it will happen? 
How will you communicate its importance?  How will you communicate connections to previous lessons? 
How will you engage students and capture their interest? 
Ask students if they play on a sports team, dance team, or do karate. What is the first
thing you should do before you start any of those activities?
Why is it important to stretch?
What would happen if you did not stretch?
DETERMINING METHODS
Show video of a player talking about taking care of your muscles.
Today we are going to learn about the different muscles in our body and how they
work. Your muscles are important for everything that you do. Even if you are not
moving or not playing a sport—if you’re just sitting still in your chair—there are muscles
working. Not all of your muscles are used for running around and moving your arms
and legs. You also have muscles that are important for other things.
Video Marlins
player talking
about
muscles and
taking care of
your muscles
INTRODUCTION OF NEW MATERIAL (10 min.)
How will you explain/demonstrate all knowledge/skills required of the objective, so that students begin to
actively internalize key points? 
Which potential misunderstandings do you anticipate? How will you proactively mitigate them?  How will
students interact with the material? 
There are three types of muscles in your body. Show an illustration of the muscular
system.
Skeletal muscles (striated muscles): muscles that you can control, which allow you to
move around. When you decide you want to move your arm, or leg, your brain sends a
message to your skeletal muscles, which allows them to move. These muscles are
attached to bones by bands called tendons. When I lift this book, for example, I am
telling my arm muscles to move.
Smooth muscles (involuntary muscles): muscles that you cannot control but that work
on their own to perform necessary functions for your body. For example, your eyes
have muscles in them that allow them to focus on what you’re looking at. Your stomach
also has smooth muscles that allow it to digest and push food into the intestines
without you having to think about it.
Cardiac muscles: muscles that cause the heart to pump blood to different parts of the
body. Blood carries oxygen to your muscles. When your muscles cramp, it is usually
because they are not getting enough oxygen and the cardiac muscles are not doing
their jobs or are being overworked. Usually this happens when you’ve been exercising
for long periods of time.
GUIDED PRACTICE (25 min.)
How will students practice all knowledge/skills required of the objective, with your support, such that they
continue to internalize the key points? 
How will you ensure that students have multiple opportunities to practice, with exercises scaffolded from
easy to hard? 
Pass out individual illustrations of the muscular system. Ask students to look at it and
explain where in the body they would find the different muscle parts. Tell students to
label cardiac muscles, smooth muscles, and skeletal muscles. Skeletal muscles are
sometimes called striated muscles (or striped muscles) because of their coloring.
Break class up into 3 groups to create posters advertising different muscle types.
Group 1: Skeletal muscles
Group 2: Smooth muscles
Group 3: Cardiac muscles
Each group’s poster must tell what each muscle is used for and include an illustration.
Encourage groups to be as creative as they want.
Each group should send representatives to the front of the class to present their
advertisements.
Chart paper,
pencils,
markers
INDEPENDENT PRACTICE (10 min.)
How will students independently practice the knowledge and skills required of the objective, such that they
solidify their internalization of the key points prior to the lesson assessment? 
Students will answer questions:
1) Yelich steps up to the plate. What type of muscles is he using to walk towards
the plate?
2) His eyes focus on the baseball that is being speeding towards him. What type
of muscles allows his eyes to focus?
3) Yelich hits the ball into left field! What type of muscles allowed Yelich to swing
the bat?
4) Yelich runs the bases. What type of muscles allow him to run?
5) While approaching second base, Yelich has a sudden pain in his chest caused
by cramping. What type of muscle is probably causing the pain?
6) Explain how you have used each type of muscle today.
Lesson Assessment: Once students have had an opportunity to practice independently, how will
they attempt to demonstrate mastery of the knowledge/skills required of the objective? 
Students will answer questions the questions to be submitted for a grade.
CLOSING (5 min.)
How will students summarize and state the significance of what they learned? 
Explain that it is important for our bodies to work and strengthen all of our muscles, not
just our skeletal muscles. When we exercise regularly and eat healthy foods, all of our
muscles get stronger.
Ask students to share one thing that surprised them about muscles.
Name_________________________
1) Christian Yelich steps up to the plate. What type of muscles is he using to walk towards the
plate?
2) His eyes focus on the baseball that is being speeding towards him. What type of muscles allows
his eyes to focus?
3) Yelich hits the ball into left field! What type of muscles allowed Yelich to swing the bat?
4) Yelich runs the bases. What type of muscles allow him to run?
5) While approaching second base, Yelich has a sudden pain in his chest caused by cramping.
What type of muscle is probably causing the pain?
6) Explain how you have used each type of muscle today.