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Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2
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Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

Dec 18, 2015

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Page 1: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

Word Knowledge

Why Did the Dinosaurs Disappear?

Open Court Anthology

Grade 2

Page 2: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

Word Knowledge

roam to wander

rare unusual extraordinary

soot ash dirt dust

erupt explode blow up

Page 3: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

1. roam rare soot erupt

2. protection imagination infection reflection

3. uncover uncertain unkind unwise

4. disappear dislike disbelief disagree

5. dinosaur for more swirl

Word Knowledge

Page 4: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

2. Dinosaurs were so huge that they could not burrow into the ground for warmth and protection.

3. A dinosaur might have eaten plants or animals.

1. Scientists use fossils to uncover clues about dinosaurs.

Page 5: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

1. roam rare soot erupt

2. protection imagination infection reflection

3. uncover uncertain unkind unwise

4. disappear dislike disbelief disagree

5. dinosaur for more swirl

Word Knowledge

Page 6: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

erupterupt

Page 7: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

roamroam

Page 8: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

sootsoot

Page 9: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

rarerare

Page 10: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

Dinosaurs were so huge that they could not burrow into the ground for warmth and protection.

Page 11: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

Build Background

In “Dinosaur Fossils” you learned that scientists learn about the creatures and the climate of the Earth of long ago from

fossils.

What do you know about why dinosaurs disappeared?

Have you read any other books about the extinction of

dinosaurs?

Page 12: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

Build BackgroundGenre: Expository Text

For many years, dinosaurs roamed the earth. Then, they died out.

What happened?Why did they disappear?

Did egg-raiding species of animals do them in?

Did a huge meteorite crash into the Earth?

Page 13: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

Build Background

Did egg-raiding species of animals do them in?

Did a huge meteorite crash into the Earth?

This story explores several scientific theories that explain why dinosaurs

became extinct.

Page 14: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

Build Background

Do you know what a theory is?

A theory is an idea explaining something. It is an opinion, or idea, based on facts,

but not proven.

Page 15: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

Expository Text• Expository text gives information. It tells people

something.

• It uses facts about real events or people.

• It presents information in a clear way.

• It gives events in the order in which they happen.

• It may be organized by topics.

Page 16: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

Open Court Vocabulary for

“Why Did the Dinosaurs Disappear?”Genre: Expository Text

Page 17: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

climate

The climate during the Ice Age was very cold.

( the normal weather conditions of a place )

Page 18: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

protection

A turtle’s shell gives it protection.

( the keeping of someone or something from harm )

Page 19: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

moisture

We can see the moisture of dew on the grass early in

the morning.

( water or other liquid in the air or on a surface )

Page 20: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

erupt

Earthquakes made volcanoes erupt all over the world.

( to break out suddenly with force )

Page 21: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

crater

The meteorite made a huge crater when it hit the

Earth.

( large hole )

Page 22: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

Meteorites fall to the Earth pulled by Earth’s gravity.

( rocks from outer space)

Page 23: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

discovery

A new discovery gave scientists a new idea why the Earth became

so cold.

( something that is seen or found out for the first time )

Page 24: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

starved

The dinosaurs may have starved to death.

( had nothing to eat )

Page 25: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

moisture( water or other liquid in the air or on a

surface )

Page 26: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

climate( the normal weather conditions of a place )

Page 27: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

erupt( to break out suddenly with force )

Page 28: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

( rocks from outer space)

Page 29: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

starved( had nothing to eat )

Page 30: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

( rocks from outer space)

Page 31: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

protection( the keeping of someone or something from harm

)

Page 32: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

crater( large hole )

Page 33: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

“Why Did the Dinosaurs Disappear?”

Scientists have lots of theories (ideas), but we will never know for sure. You will have to decide which theory you agree with the most.

Page 34: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

Why did the Dinosaurs Disappear?

More vocabulary

Page 35: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

Roam

• To wonder without a direction

• To travel without a purpose

Page 36: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

disappear

• To vanish from sight

Page 37: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

poisoned

• A harmful substance for a body

Page 38: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

burrow

• A hole or tunnel in the ground

Page 39: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

meteorite

• a huge stone or piece of metal that has reached the earth from outer space

Page 40: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

crater

• the hole or pit in the ground

Page 41: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

Comprehension StrategiesGood Readers…

Monitor and Clarify

STOP and reread to determine the meaning of words and more difficult

ideas or passages.

“Wait a minute! I didn’t understand that. Let me stop and reread for clarity.”

“I am confused by that. I need to clarify.

SummarizeKeep track of what you have read and

focus on important details

“At the beginning of the story…” “Then…”

Make PredictionsGuess what will happen next based on

what you have read or heard.

“I predict that ___ will happen…”

“I think ______ will happen…”

Page 42: Word Knowledge Why Did the Dinosaurs Disappear? Open Court Anthology Grade 2.

Clues

Page ___-

Page ___-

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Problems

Page ___-

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Wonderings

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