Here is a mega bundle of 148 CER (Claim, Evidence, Reasoning)SCIENCE no prep CER photo writing prompts for critical thinking that can be used as bell ringers, do nows, an introduction, review or assessment. This can last most of the school year! Students use the Claim, Evidence and Reasoning model to construct scientific explanations. Each slide has a real world image, the main question and a graphic organizer for the students to fill in the claim, evidence and then reasoning. The second slide