Claim Evidence Reasoning Writing
Scientific Explanations
Scientific explanation can be different from everyday explanations because they are based on evidence. Science students need to explain conclusions that they reach, from taking data, in a clear way. Claim, Evidence and Reasoning is a format that makes writing very complex ideas, a little easier. When you are writing a paper, answering questions on a quiz, responding to podcasts/video cast, and or projects, you have a much greater chance of proving what you know if you use the C-E-R format.

Claim: A statement about the solution to a problem
This is the idea that you are trying to prove. In English class, you would call it a thesis statement. It could also be the introductory paragraph in a paper

Evidence: Scientific data that supports the claim
This section describe graphs, data and outline evidence. Your own thoughts will go in the reasoning section. Evidence should include:
  • Studies that support your claim
  • Data
  • Analysis
  • Facts

Reasoning: Justification showing why the evidence supports the claim.
This is where you will put your ideas about what the evidence means. Reasoning explains why evidence came out the in the way that it did. Reasoning should include:
  • Your ideas on why graphs have a particular shape.
  • Your ideas on why your claim is true.
  • You should reach logical conclusions based on evidence.
  • Build your argument to prove your point.
  • Questions for future research.