This interactive introductory lesson is a great resource to introduce Claim, Evidence, Reasoning, or CER. This lesson not only stamps the definitions for each of these components, but allows science students to realize that they use CER in life, every day, and it will apply to our class too. From a clearly stated objective and agenda, to a debatable DN, teacher model, stamped content, Think-Write-Pair Independent Practice, and an engaging fishbowl debate activity... this CER lesson will surely b