1. Claim, Evidence, Reasoning (CER)
Ms. Lew Biology

2. Queenie and Arthur: Slip or trip? Evidence?
Queenie stated Arthur tripped down the stairs and fell to his death.

3. Was Queenie telling the truth? Did Arthur trip and fall to his death?
Evidence
Reasoning (Why is this evidence important?)
Not just Conclusions. Make an argument or explanation, convince.

4. This is how to make an argument or explanation convincing.
Why?
This is how to make an argument or explanation convincing.
This is what scientists do
“You have to see this.” (It’s hilarious and has to do with cats. You love watching cat videos.)
Why?
Just because. …

5. Claim – evidence – reasoning (CER)
Answers the question
Short statement
Evidence:
Scientific data supporting your claim
Must be sufficient and relevant to claim
Reasoning:
Explanation connecting your evidence to the claim
Shows why and how the data counts as evidence
Usually includes scientific principles and science vocabulary
At least a few sentences in length.

6. Writing makes you Think.

7. Do cockroaches prefer light or dark environments?

9. Writing words to use Because First, second, third…
Usually, generally, indicates, suggests
Therefore
If... Then...
However

10. You try! (in your notebook)
Use one of the sentence starters below to make a claim: (5 minutes)
A) The greatest (choose one) football/basketball/baseball/soccer player is ______________.
B) The best movie is __________________.
C) The greatest musical artist (solo or group) is _____________.
2. Write down at least 3 pieces of evidence that support your claim.
**DATA MUST BE ACCURATE!
3. Provide reasoning that explains how the evidence you chose supports your claim of the “best.”

11. We will share tomorrow in groups!