© Learning A–Z All rights reserved.. © Learning A–Z All rights reserved.. Each Mystery File includes a Mystery File Question to help students decide whether the subject does or does not
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Credits: © iStockphoto.com/kali9
1
Each Investigation Pack includes everything you need for this activity The
investigation begins with the Key Question—the guiding question that
students will address during their reading It challenges students to identify
texts, as well as from their discussions, to answer the Key Question
ACTIVITY OVERVIEW
group reads at least
and collects evidence
Key Question
with the other files they read, and why or why not
exciting new science adventure They will dig deeper into science content, apply scientific practices, and develop skills in the language arts
high-interest, in-depth science content In each investigation, students will
critical thinking, and creativity
ABOUT THE
RESOURCE
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INVESTIGATION PACK TEACHER’S GUIDE
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color, but this is not essential They may be printed single-sided, in black and white, or even projected or viewed on screen as needed
is written at a lower reading level, two or more are at a middle level, and one is at a higher level These levels are represented by small dots to indicate a lower (•), middle (••), or higher (•••) reading level Assign the appropriate file to each student within a group, or pair an emerging reader with a capable reader and ask them to read the same file
¢ The I.File Response Sheet asks the Key Question and provides space for prior knowledge While reading, students will record key vocabulary and evidence from the text they read Then they will compare notes with their teammates to write their answer to the Key Question on this sheet
¢ The Mystery File may or may not share all of the key details of the
I.Files Each Mystery File includes a Mystery File Question to help students decide whether the subject does or does not belong grouped
their decision using evidence from the text
¢ The I.Files Teaching Tips are specific to the topics in the pack They include answers
common misconceptions, key vocabulary terms, solutions to Math Moments, and extensions and variations related to the files
Each Investigation Pack includes the following:
informational text covering a specific high-interest topic related to a Science A–Z unit Students will interpret photographs, illustrations,
maps, and graphs Certain embedded details are common to all the
files and are integral to answering the Key Question
Contents of Each Investigation Pack
I.File
Reading Levels
low middle high
File
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INVESTIGATION PACK TEACHER’S GUIDE
3
We recommend using the Investigation Packs in one of two ways
of the unit it accompanies This activity is meant to complement the other unit materials while providing students with deeper scientific content Before using the Investigation Pack, you might have students
can be used at the beginning of the unit in order to spark interest in the subject matter
reading activity before or after introducing other unit materials
matter of the Investigation Pack
Make sure students understand what the question is asking
the answer is in the My First Answer section, based on their prior knowledge Now is a good time to review unfamiliar vocabulary
Grouping Alternatives
Have students work in Investigation Teams (or “I.Teams”) of four to six
convene to discuss the pack of files If using smaller groups, consider one of these approaches:
pairs meet to discuss all the files in the pack
files together
Group Roles
Consider assigning group roles to students, particularly a recorder and a discussion leader Other roles might include a materials collector,
a timekeeper, a reporter, and a fact checker
reading, students should record key vocabulary terms in the My Key Words and Definitions chart and attempt to define them in their own words using context clues Provide dictionaries to help students define the words
In the My Evidence section, instruct students to record details from their
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can be copied directly from the left-hand I.Team Evidence section of the
I.File Response Sheet Then have them circle whether each detail is or is not
details in order for the answer to the Mystery File Question to be yes.
Invite groups to share their answers to the Key Question and the Mystery File Question
If groups disagree, encourage scientific
evidence If groups didn’t find all the key
share with them the ones they missed
students come away with the correct answers to the Key Question and the Mystery File Question Address any misconceptions that may have influenced
Now have students come together as a group and report on what they have learned They should collaboratively fill out the group section
for details that are definitely true of all the files as well as space for details that only might be true By analyzing which details are found in all the
files, students will engage in scientific argument in order to come to an agreement on the answer to the Key Question Invite groups to share their findings so the whole class can come to a consensus Refer to the
I.Files Teaching Tips to guide the discussion
Students each read
AFTER THE
ACTIVITY
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INVESTIGATION PACK TEACHER’S GUIDE
5
Consider these ideas to extend the usefulness of any Investigation Pack Also see the I.Files Teaching Tips that accompany each set of I.Files for extensions and variations specific to that Investigation Pack.
¢ Home Connection: Using the “flipped classroom” approach, have
file Back in class, have students discuss the answers to the Key
¢ Center Activity: After the group activity, in which each student only
Allow students to read the rest of the files from the pack to learn more about each topic
the text:
1 Provide vocabulary support by using a word wall
2 Review pronunciations with students before beginning the activity
3 Introduce any science words that have cognates in a student’s
native language
4 Pair an English Language Learner with a fluent reader of English
5 Allow students to define vocabulary terms in nonlinguistic fashion
(drawings)
¢ Arts: In a science journal or on a separate piece of paper, students can create their own version of a picture or diagram from their
I.File or draw a new one based on facts from their reading
¢ Technology: For digital literacy practice, have students conduct
present their findings to the class using digital presentation software
¢ Writing/Arts: Have students research and create a new I.File on a topic
details to include it with the others Students may also add images, maps, graphs, math problems, and interesting sidebars
¢ Field Trip/Guest Speaker: Take a class field trip or invite a guest speaker
EXTENSIONS
AND VARIATIONS
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Name Date Others on my I.Team Title of I.File
Key Question
What is the same about all living things?
My First Answer
My Key Words and Definitions
Teacher Instructions: Before students read the I.Files, ask them to explain what they know or think they know about the
answer to the Key Question using the My First Answer section After students read an I.File, ask them to list five words
that are important for understanding the topic Then have them define each term in their own words.
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I.FILe RespONse sheeT
My Evidence
_ _
of all the I.Files, but they would need to learn more to know for sure Students should not use these details to answer the
Key Question Finally, have students provide the I.Team Answer in complete sentences, using separate paper if necessary.
Details that might be true
of all the I.Files
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Credits: left: © Nomad/Superstock; right: © Sebastian/Alamy
i magine having legs twenty times longer
than your body! Daddy longlegs have eight very long legs They use their legs
Look outside if you want to see a daddy longlegs They live almost everywhere Don’t be afraid They don’t hurt people.
in big groups no one is sure why
What do you think?
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© Henrikhl/Dreamstime.com; bottom right: © Stefan Sollfors/Alamy
© Learning A–Z All rights reserved
Living/Non-Living } Living Things } Daddy Longlegs
A daddy longlegs has eight
long legs But two of its
legs are longer than
the other six These
long legs are
made of special cells
The cells help the
daddy longlegs smell,
taste, and hear These
senses help it respond
The young look like their parents
when they hatch They molt,
or shed their skin, as they grow and develop into adults.
The Longest Legs of All
Daddy Longlegs
1 body part
2 eyes
No fangs Does not make silk
Spider
2 body parts
8 eyes Fangs Makes silk
Comparing DaDDy LongLegs anD spiDers
Both
8 legs Move by crawling Molt
2 longer legs
A daddy longlegs can let go
of one of its legs if another animal catches it Then the daddy longlegs runs away.
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Credits: Left: © Mc Donald Wildlife Photog./Animals Animals/age fotostock; center (ants): © iStockphoto.com/Pitroviz; right: © Biosphoto/Superstock
H ow many ants can a giant anteater
eat? Up to 30,000 a day!
A giant anteater is made of cells All cells use energy An anteater gets energy from eating ants and other insects.
The giant anteater’s long nose helps it respond to the environment to find food
The anteater smells around to find an ant nest It digs up the nest with its claws Then the anteater uses its long, sticky tongue It picks
up many ants at once.
THE EATING MACHINE
File
Giant Anteater
A giant anteater can flick its tongue
up to 160 times a minute when it eats!
Giant anteaters
have no teeth
They grab food
with their sticky
tongue Then they
swallow it whole!
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© age fotostock/Superstock; bottom right: © iStockphoto.com/Eric Isselée
© Learning A–Z All rights reserved
Living/Non-Living } Living Things } Giant Anteater
Giant anteaters live in forests and grasslands The places where they live are shown in red
WHERE GIANT
ANTEATERS LIVE
Atlantic Ocean
Pacific
Ocean
SOUTH AMERICA
Giant anteaters mostly live alone But they
pair up to make more of their own kind
The baby anteater looks like its parents
But it is much smaller The baby climbs on
its mother’s back Its fur blends in with the
mother’s fur The baby hides there while it
grows and develops.
eye clawed feet
thick, striped fur
180 cm (6 ft.)
BODY PARTS OF A GIANT ANTEATER
Giant anteaters sleep about
15 hours a day to save
energy How many hours
a day are they awake?
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A pumpkin can grow to be huge!
But it starts as a small seed
The seed develops into a green vine it needs water and sunlight.
Soon, flowers grow Bees visit the flowers Then the pumpkins grow
Pumpkins are the fruit of the plant They start off small and green Then they grow large and turn orange
Seeds are inside the pumpkin The pumpkin makes more of its own kind with seeds The seeds can grow into new plants.
Small SeedS, Big Fruit
File
People in ireland used
to make jack-o’-lanterns out of turnips now people usually make them out of pumpkins.
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© iStockphoto.com/Andrea Hill; right: © iStockphoto.com/Marcie Cheatham
© Learning A–Z All rights reserved
Living/Non-Living } Living Things } Pumpkin
How to Cook PumPkin SeedS
1 Rinse and clean the
for about 20 minutes
Pumpkin plants have big leaves
The leaves are made of cells
They get energy from the Sun
The plants respond to what is around them They use energy
to grow toward the Sun They can climb trees They can even climb fences They climb to get more sunlight.
C limbing Vines
John has 88 seeds on his plate He eats 36 of them How many seeds are left?
Some farmers grow big pumpkins
The biggest ones weigh as much
as a small car.
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stars This one is
called a tile sea star
It takes a sea star about a year to regrow a lost arm
Credits: main: © Lea Lee/ardea.com; bottom left:
© Reuben Reynoso/Alamy; right: © F Hecker/Blickwinkel/age fotostock
i magine walking along the shore
There’s a sea star it’s missing
an arm Don’t worry—sea stars can grow new arms!
Sea stars are made of cells To build
a new arm, they grow new cells
Some sea stars can even grow a whole new sea star from just one arm! They use the energy stored in the arm until they grow a new mouth Then they can get energy from food again.
A Broken StAr
Most sea stars have 5 arms, but some have
as many as 50!
File
Sea Star
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© Learning A–Z All rights reserved
Living/Non-Living } Living Things } Sea Star
A sea star has hundreds
of tiny “tube feet” on its
underside They grab
the seafloor and pull
the star along
armtube
feet
A sea star has no brain! But it does
have nerves in each arm The arms
control where it moves.
A sea star has an eye at the end of
each arm The eyes only see light and
dark But that’s enough information
for the sea star it responds to its
environment by moving to find food.
Sea stars make more of their own kind
by making eggs An egg hatches into a
young sea star called a larva it is tiny
The larva swims around in the ocean
once the larva grows bigger, it sinks
to the seafloor it grows many arms
it develops into an adult sea star.
Sea stars are sometimes
called starfish Are sea
stars really fish? Why
or why not?
Starwalkers