Literacy and science
Claim, evidence, reasoning — one paragraph that holds together.
CER is the shared writing frame for science labs and informational reading. The claim answers the question. Evidence is from the text, table, or experiment. Reasoning uses a science or literacy idea to connect the two.
Weak reasoning restates the evidence. Strong reasoning names the principle: conservation of mass, author’s purpose, or slope as unit rate. Students should not invent data. If the table does not support the claim, the claim must change.