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Caddle, Mary C.; Brizuela, Barbara M. – Journal of Mathematical Behavior, 2011
This paper looks at 21 fifth grade students as they discuss a linear graph in the Cartesian plane. The problem presented to students depicted a graph showing distance as a function of elapsed time for a person walking at a constant rate of 5 miles/h. The question asked students to consider how many more hours, after having already walked 4 h,…
Descriptors: Grade 5, Mathematics Instruction, Elementary School Students, Mathematical Logic