Don't Jump to Conclusions (CER Framework)

Grade Levels
6th - 8th
Formats Included
  • PDF
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The CER Framework (Claim, Evidence, and Reasoning) was developed by Katherine McNeill and Joseph Krajcik to help students make sense out of observational evidence when making explanations for questions they ask about the natural world. Use this lesson series to introduce CER to your students. They will make observations of a mystery object, make a claim about it, and write a reasoning statement that makes sense. Aligned to NGSS Science and Engineering Practices.

Total Pages
Answer Key
Rubric only
Teaching Duration
2 days
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to see state-specific standards (only available in the US).
Support claim(s) with logical reasoning and relevant, accurate data and evidence that demonstrate an understanding of the topic or text, using credible sources.


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