yellowstone makes a triumphant return ten years after fires cause and effect
TRANSCRIPT
Yellowstone Makes a Triumphant Return Ten Years
After Fires
Cause and Effect
Cooperative Questions
• What was the cost of fighting the fires in Yellowstone National Park?
Cooperative Questions
• In what year was this article written?
Cooperative Questions
• What is the meaning of the word prone in this sentence?
–Without fire, pine forests grow old, prone to disease and unnaturally thick.
Cooperative Questions
• How much of Yellowstone was burned in the fires?– This is a simple question that
requires thought!
Cooperative Questions
• What do all of the research project studying Yellowstone after the fires have in common?
Cooperative Questions
• How many fires burned in Yellowstone and how many of each type were there?
Identify a Cause or Effect
• “Without fire, pine forests grow old, prone to disease, and unnaturally thick.”
•What happens in this passage?•Why does it happen?
Identify a Cause or Effect
• But today, the forest floor is a sea of green – knee-high pine trees planted, literally, by the fires of 1988.
• Cause?
• Effect?
Identify a Cause or Effect
• What put Yellowstone’s fires out was not retardant-dropping planes or armies of firefighters on the ground. It was a quarter of an inch of autumn rain.
• Cause?
• Effect?
Identify a Cause or Effect
• Just as fire recharged the pines, so, too, did it help plants that grazing animals eat.
• Cause?
• Effect?
Infer the Cause or Effect
• “… others (fires) were started by humans.”
What inference can we make about how humans may have started the fires?
Focus on Causes
EffectYellowstonefires
Causes
This is a stated cause!
This is a stated cause!
This is an inferred cause!
Focus on Causes
EffectYellowstonefires
Causes
This is a stated cause!
This is a stated cause!
This is an inferred cause!
Focus on Effects
CauseYellowstone fires
Effects
Focus on Effects
CauseYellowstone fires
Effects
Casual Chain
Initial cause
IntermediateCause / effect
Intermediate cause / effect
Final effect
Casual Chain
fire
Fallen trees
Attract insects
Attract insect – eating animals
Causal Chain
Pine trees burned
IntermediateCause / effect
Intermediate cause / effect
Final effect
Practice - Cause and Effect
• Explain why the fires in Yellowstone were helpful. Include two details from the selection in your answer.
Practice - Author’s Purpose
The author of the selection states “The fires were helpful." Do you agree with his statement? Use two details from the selection to support your answer.
Practice - Evaluate Reasoning
Is the following statement a reasonable conclusion that readers may draw from the selection?
Fires are necessary for a healthy forest.
Provide two details from the selection to support your answer.