CER Claim Evidence Reasoning Posters and Worksheets

Rated 4.77 out of 5, based on 47 reviews
47 Ratings
Teaching Muse
Grade Levels
4th - 6th, Homeschool
Resource Type
Formats Included
  • Zip
  • Google Apps™
24 printable pages plus digital Google Slides companion
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Includes Google Apps™
The Teacher-Author indicated this resource includes assets from Google Workspace (e.g. docs, slides, etc.).

What educators are saying

I have looked for a way to explain CER to my students and everything I found still confused them. This is a great resource for explanation.
This resource is perfect for teaching students how to write scientific arguments with evidence. It pairs nicely with my adopted science curriculum.
Also included in
  1. Introduce and reinforce the CER strategy with your science students using the bundle of print and digital materials. These lessons will walk you through introducing the claim, evidence, and reasoning method to your students to help clarify, think critically, and explain their scientific reasoning to
    Price $6.25Original Price $8.00Save $1.75


Are you trying to implement CER into your science classroom and unsure where to start? These claim, evidence, reasoning materials will walk you through introducing CER to your students using teacher tips pages, ideas for practicing with your students, student reference sheets, scaffolded classroom decor posters, a graphic organizer, and a rubric to assess student writing.

Are you looking for more practice writing CER responses? Check out this resource that includes ten student activities. Click here to learn more.

Students will be able to:

  • Demonstrate their knowledge of scientific principles through crafted writing responses
  • Utilize the claim, evidence, reasoning formula to summarize their understanding of science activities, classroom discussions, and real-life scenarios

CER resources include:

  • Teacher tips pages: Explanation of how to implement this writing strategy in your science classroom
  • Classroom poster: Claim, evidence, reasoning poster sized at 18" x 24" (Directions to print 8.5" x 11" posters to a larger size)
  • Scaffolded posters: Various posters sized at 8.5" x 11" which include the terms claim, evidence, reasoning as well as a definition and examples
  • Formula poster: Sized at 8.5" x 11" will walk students through writing a thorough response.
  • Practice examples: Ideas to use 5 real-life examples with your students
  • Student reference sheets: Perfect to put in a student science notebook
  • Student graphic organizer: Use with students as they are learning about the strategy or hand out to struggling students who need a differentiated approach
  • Digital Google Slides version of the organizers and examples
  • Rubric: Assess student responses using the rubric

How to use the CER Writing strategy in your classroom:

  • Introduce this strategy on the first days of school. Instructions are included to teach you how to do this.
  • Strengthen student analysis and writing skills using this strategy while working on hands on activities and labs.
  • Assessment to demonstrate understanding of science concepts.

Teacher feedback:

  • This resource is perfect for teaching students how to write scientific arguments with evidence. It pairs nicely with my adopted science curriculum.
  • My students used this as an individual anchor to refer to when using the CER writing in Science. My students and I found this resource helpful, especially for students who are new to this strategy. Several of them kept referring back to the chart to check their responses.
  • Of all the CER products I looked at, this one seemed to be the most thorough.
  • There were some helpful tips on how to start teaching CER. I liked the suggested videos to help students get better at applying CER to daily situations.
  • I love that this resource provides multiple ways to use the material, and it is very clear! It lines up perfectly with what I'm currently teaching, and there is a rubric!!

This resource will help your NGSS aligned units.

Science units you might be interested in:

Kindly Note: If you have questions, do not hesitate to email me at Teaching Muse Email



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Total Pages
24 printable pages plus digital Google Slides companion
Answer Key
Rubric only
Teaching Duration
Lifelong tool
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to see state-specific standards (only available in the US).
Cite specific textual evidence to support analysis of science and technical texts.
Determine the central ideas or conclusions of a text; provide an accurate summary of the text distinct from prior knowledge or opinions.
Introduce claim(s) about a topic or issue, acknowledge and distinguish the claim(s) from alternate or opposing claims, and organize the reasons and evidence logically.
Support claim(s) with logical reasoning and relevant, accurate data and evidence that demonstrate an understanding of the topic or text, using credible sources.
Provide a concluding statement or section that follows from and supports the argument presented.


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