CER Conclusion Directions
The claim is a testable statement or conclusion that answers the original question.
The evidence is scientific data that supports the student’s claim. This data can come from an
investigation that students complete or from another source, such as observations, reading
material, archived data, or other sources of information.
The data needs to be both appropriate and sufficient to support the claim. Appropriate data
supports the claim. A good explanation only uses data that supports the claim in answer to the
original question. Also consider whether or not you have sufficient data. Sufficient data is
whether they have enough data or not.
When selecting the data to use as evidence, consider both whether it is appropriate to support
their claim and whether or not there is enough data to support their claim.
Reasoning is a justification that shows why the data counts as evidence to support the claim
and includes appropriate scientific principles. The reasoning ties in the scientific background
knowledge or scientific theory that justifies making the claim and choosing the appropriate
CER (Claim-Evidence-Reasoning) Rubric
No claim is
The claim is
not use clear
does not link