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Robinson, Katherine M.; Arbuthnott, Katherine D.; Rose, Danica; McCarron, Michelle C.; Globa, Carin A.; Phonexay, Sylvia D. – Journal of Experimental Child Psychology, 2006
Age-related changes in children's performance on simple division problems (e.g., 6 divided by 2, 72 divided by 9) were investigated by asking children in Grades 4 through 7 to solve 32 simple division problems. Differences in performance were found across grade, with younger children performing more slowly and less accurately than older children.…
Descriptors: Intermediate Grades, Grade 4, Grade 5, Grade 6
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Koellner-Clark, Karen; Lesh, Richard – School Science and Mathematics, 2003
This paper describes a proportional reasoning problem set within a real-life context and a complete analysis of one small group discussion of this problem over the course of a 90-minute block. The seventh-grade students' discourse is described to provide insights into typical mathematical interpretations of this problem, as well as some…
Descriptors: Group Discussion, Problem Sets, Mathematical Concepts, Mathematical Logic