Connecting Research to Teaching: My Answers Don't Match! Using the Graphing Calculator to Check

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This article reports findings from a study on what students trust and why when checking their written work with a graphing calculator results in conflicting solutions. Based on these findings, suggestions for promoting good checking practices are provided.

Contributor Notes

Allison W. Mcculloch,, and Karen A. Keene,, teach in the Department of STEM Education at North Carolina State University in Raleigh. They are interested in technology's role in students' mathematical understanding and experiences.

Rachael H. Kenney,, teaches in the Departments of Mathematics and Curriculum and Instruction at Purdue University in West Lafayette, Indiana. She is interested in students' reasoning and reflection in mathematics.

(Corresponding author is Mcculloch author is Keene author is Kenney
The Mathematics Teacher


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