Claim Evidence Reasoning Graphic Organizer: A Practical Guide for Students
The Claim Evidence Reasoning (CER) graphic organizer has become a staple in classrooms that emphasize scientific argumentation and persuasive writing. By breaking down complex ideas into three clear components—claim, evidence, and reasoning—students can construct logical arguments that are both convincing and easy to evaluate. This article explains what a CER graphic organizer is, why it matters, and how teachers and learners can use it effectively, with tips drawn from expert videos, worksheets, and real‑world examples (yes, even hedgehogs can illustrate the process!).
What Is a Claim Evidence Reasoning Graphic Organizer?
A CER graphic organizer is a visual template that guides writers through three essential steps:
- Claim: A concise statement that answers the prompt or presents a position.
- Evidence: Observable, measurable data that supports the claim. This can include experiment results, quotations, or statistical facts.
- Reasoning: The logical connection that explains how the evidence backs the claim, often referencing scientific principles or underlying concepts.
When arranged in a grid or column format, the organizer helps students keep each element distinct while seeing the overall flow of their argument.
Why Use a CER Graphic Organizer?
Research on writing instruction shows that structured frameworks improve both the quality of student work and their confidence in argumentation. The CER format, in particular, offers several benefits:
- Clarity: Separating claim, evidence, and reasoning reduces the risk of mixing opinion with fact.
- Critical Thinking: Students must evaluate the relevance and reliability of their evidence.
- Transferable Skills: The same structure applies to science labs, social studies debates, and even literary analysis.
- Assessment Alignment: Teachers can grade each component individually, providing targeted feedback.
Getting Started: Video and Worksheet Resources
For visual learners, a short introductory video walks through the basics of writing with the CER framework. In the video, the presenter highlights how a simple claim—such as “Hedgehogs are effective natural pest controllers”—can be supported with observable evidence (e.g., field observations of hedgehog foraging) and reasoning that links the behavior to pest reduction.
To reinforce the video content, educators can download the accompanying worksheet from the following URL: https://briantolentino.com/introduction-to-. The worksheet includes blank CER boxes, prompting students to fill in each section step‑by‑step.
Expert Guidance: Nicole Borkowicz and Mx. Koning
Nicole Bork
