Where did all Those Giant Reptiles Go

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Where did all Those Giant Reptiles Go?

• Presented by
• Ryan Murphy and Garrett Becker

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Grade level and Topic

• This lesson is designed for 4th graders
• The topic of this lesson is to explore what
  happened to the dinosaurs and why are they not
  with us today.

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Three Childrens Misconceptions

• The dinosaurs died of old age.
• The Indians killed and eat them.
• Aliens from another planet took them away as pets.

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The Two Most Accredited Theories

• That an astoiord collided with the Earth and
  changed the climate and the dinosaurs could not
  adapt.
• That a volcanic eroption changed the Earths
  climate and the dinosaurs could not adapt.

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Importance of This Misconception

• This is an important misconception for children
  to understand because with so many misconceptions
  out there, it is best for them to get a good base
  of knowledge about the two most popular theories
  so they will be able to make an informed guess on
  what happened.

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USA Today SurveyWhat 4th graders think happened
to the dinosaurs?

• 22 percent said that an asteroid hit the Earth
  and killed all the dinosaurs?
• 5 percent said that a volcanco killed all the
  dinosaurs.
• 73 percent- other

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Interview Ten 4th gradersWhat do you think
happened to the dinosaurs?

• Aliens from another planet took them away.
• Asteroid collided with Earth killing them all.
• What is a dinosaur?
• I do not know.
• There was a change in the weather on Earth.
• The earth flooded and they could not swim.
• A boom killed them.
• They died of old age.
• The Indian's ate them
• Asteroid collided with Earth changing the Earths
  weather.

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Lesson Plan

• Ask students what they think happened to the
  dinosaurs.
• Explore brainstorming by using a KWL Chart.
• Read students the book ASTEROID IMPACT by Douglas
  Henderson to explain one theory.

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Lesson Plan

• We will have a volcano activity to explain the
  second theory.
• Students will write a brief story about what they
  think happened leading them into a hypothesis to
  begin their own investigation.

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Activity

• Make your own volcano and see what happens.
• Materials
• Clay
• Baking soda
• Vinegar
• Paper towel

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Conclusion

• No one really knows what happened to the
  dinosaurs.
• The two most accredited theories are that an
  asteroid hit the Earth or that a volcano erupted
  changing the Earths climate.
• Having the children explore their own ideas.

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Important for future teachers

• Because there is not one correct answer it is
  important for teachers to learn all you can about
  the all different theories so you will be able to
  handle any question that your students may come
  up with in the future.

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End