Claim, Evidence, Reasoning (CER) is the backbone of science argumentation in the middle grades. But in an age where any answer is a search away, the challenge is not finding information — it is reasoning with it.
Why CER matters more with AI around
When students can look up a 'right answer' instantly, the thinking can quietly disappear. CER forces it back into the open: students have to support a claim with specific evidence and explain why that evidence actually matters.
Where digital simulations fit
Simulations give every student a safe, repeatable lab. They can change one variable, watch the result, and collect the evidence they need — without the cost, mess, or time of a physical setup. That makes them ideal evidence-generators for a CER task.
A simple routine
I give students a question, point them to a simulation, and ask them to gather evidence before they write. They make a claim as a hypothesis first, then revise it after the data comes in. The simulation becomes the source of truth they are reasoning about.
The goal is never the simulation or the worksheet — it is students who can defend an idea with evidence. CER plus sims gets them there.