Claim Evidence
Reasoning (CER)
I read an article by Osborne (2007) who wrote that many studies have shown that explicitly teaching, “specific strategies does improve students’ scientific reasoning” (p. 465-466). One of these studies by McNeill and Krajcik introduces an instructional framework as a means to break down and scaffold scientific explanation. The framework known as claim evidence reasoning, can promote student scientific reasoning (McNeill & Krajcik, 2006, p. 3). The study uses a base explanation rubric that breaks down scientific explanation into three categories (Novak et al, 2009, p. 54):
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Both Novak and McNeill and Krajcik in separate studies with the claim evidence reasoning framework found that while “students’ evidence and reasoning scores both begin and end lower compared to their claim scores” after implementation of the framework they do improve (McNeill & Krajcik, 2006, p. 14). From McNeill and Krajcik’s study, I developed my inquiry question:
What happens to scientific literacy skills after the introduction of the claim evidence reasoning framework?
As scientific literacy is a broad term, my focus of the definition is most similar to the National Science Education Standards definition, which is the ability to “use appropriate scientific processes and principles in making decisions” and “engage intelligently in public discourse and debate about matters of scientific and technological concern” (NRC, 1996, p. 13).
What happens to scientific literacy skills after the introduction of the claim evidence reasoning framework?
As scientific literacy is a broad term, my focus of the definition is most similar to the National Science Education Standards definition, which is the ability to “use appropriate scientific processes and principles in making decisions” and “engage intelligently in public discourse and debate about matters of scientific and technological concern” (NRC, 1996, p. 13).
CER image from http://www.edutopia.org/sites/default/files/styles/responsive_1240px/public/content/82/brunsell-claim-evidence-reasoning.gif?itok=3SzX9knw×tamp=1397382476