Base Rubric for Claim, Evidence, Reasoning, Rebuttal (CERR) Taken from Supporting Grade 5-8 Students in Constructing Explanations in Science: The Claim, Evidence, and Reasoning Framework for Talk and Writing by Katherine L. McNeill and Joseph Krajcik (2012). Component 0 1 2 Claim Does not make a Makes an accurate Makes an accurate A statement or claim, or makes an but incomplete claim. and complete claim. conclusion that answers inaccurate claim. the question asked or the problem posed. Evidence Does not provide Provides Provides appropriate Scientific data that evidence, or only appropriate, but and sufficient supports the claim. The provides insufficient evidence evidence to support data needs to be inappropriate to support claim. claim. appropriate and evidence that does not May include some sufficient to support the support claim. inappropriate claim. evidence. Reasoning Does not provide Provides reasoning Provides reasoning A justification that reasoning, or only that links the claim that links evidence to connects the evidence to provides reasoning and evidence. claim. Includes the claim. It shows why that does not link Repeats the evidence appropriate and evidence to the claim. and/or includes sufficient scientific data counts as evidence by using appropriate some scientific principles. and sufficient scientific principles, but not principles. sufficient. Rebuttal Does not recognize Recognizes Recognizes Recognizes and that an alternative alternative alternative describes alternative explanation exists and explanations and explanations and explanations, and does not provide a provides appropriate provides appropriate provides counter rebuttal or makes an but insufficient and sufficient counter evidence and reasoning inaccurate rebuttal. counter evidence and evidence and for why the alternative reasoning in making reasoning when explanation is not a rebuttal. making rebuttals. appropriate.
Component 0 1 2 Claim A statement or conclusion that answers the question asked or the problem posed. Does not make a claim, or makes an inaccurate claim. Makes an accurate but incomplete claim. Makes an accurate and complete claim. Evidence Scientific data that supports the claim. The data needs to be appropriate and sufficient to support the claim. Does not provide evidence, or only provides inappropriate evidence that does not support claim. Provides appropriate, but insufficient evidence to support claim. May include some inappropriate evidence. Provides appropriate and sufficient evidence to support claim. Reasoning A justification that connects the evidence to the claim. It shows why data counts as evidence by using appropriate and sufficient scientific principles. Does not provide reasoning, or only provides reasoning that does not link evidence to the claim. Provides reasoning that links the claim and evidence. Repeats the evidence and/or includes some scientific principles, but not sufficient. Provides reasoning that links evidence to claim. Includes appropriate and sufficient scientific principles. Rebuttal Recognizes and describes alternative explanations, and provides counter evidence and reasoning for why the alternative explanation is not appropriate. Does not recognize that an alternative explanation exists and does not provide a rebuttal or makes an inaccurate rebuttal. Recognizes alternative explanations and provides appropriate but insufficient counter evidence and reasoning in making a rebuttal. Recognizes alternative explanations and provides appropriate and sufficient counter evidence and reasoning when making rebuttals. Base Rubric for Claim, Evidence, Reasoning, Rebuttal (CERR) Taken from Supporting Grade 5-8 Students in Constructing Explanations in Science: The Claim, Evidence, and Reasoning Framework for Talk and Writing by Katherine L. McNeill and Joseph Krajcik (2012).
U9_L6_Resource_BaseRubric_CERR.docx