Argument Writing Lesson: Explaining Evidence with Reasoning | CER Grades 6–8

Help students explain how their evidence actually supports their claims.

This ready-to-use argument writing lesson for grades 6–8 teaches students the reasoning step of CER, the part that connects a claim and its evidence.

Students learn that strong arguments don't just include evidence; they explain why the evidence matters. Through guided instruction, examples, discussion, and a hands-on Bridge Builder activity, students practice connecting evidence to their claims with clear reasoning.

WHAT'S INCLUDED

• Teacher Guide with step-by-step lesson directions

• Slide deck lesson

• Bridge Builder reasoning activity

• Guided examples and discussion prompts

• Exit reflection

• Differentiation strategies

• Suggested pacing for a 45–60 minute class

• Ready-to-use, low-prep materials

STUDENTS WILL PRACTICE

• Understanding the role of reasoning in argument writing

• Explaining how evidence supports a claim

• Connecting ideas clearly in argumentative writing

• Strengthening explanations with logical reasoning

• Developing critical thinking and analysis skills

WHY TEACHERS LOVE IT

✔ Low prep — Download, project, and teach
✔ Makes reasoning concrete — Students see exactly how claims and evidence connect
✔ Engaging — Includes a hands-on reasoning activity
✔ Middle school friendly — Clear examples and accessible instruction
✔ CER-aligned — Directly supports the Claim, Evidence, Reasoning framework

PERFECT FOR

• Completing an argument writing unit

• Writing workshop

• Small-group instruction

• Reteaching or intervention

• Test prep and review

• Teaching the reasoning component of CER

PART OF THE COMPLETE CER UNIT

This is Lesson 4 of the complete Middle School CER Argument Writing Unit. Use it independently or pair it with the other CER lessons to give students a complete, step-by-step argument writing sequence.

The missing piece between “I have evidence” and “I can explain why it proves my point.”