Geometric Reflections: Why Should They Not Be Just a Flip?

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Dawn Teuscher Mathematics Education, Brigham Young University, Provo, UT

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Shannon Dingman Mathematics Education, University of Arkansas, Fayetteville, AK

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Travis A. Olson Mathematics Education, University of Nevada, Las Vegas, NV

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Lisa A. Kasmer Mathematics Education, Grand Valley State University, Allendale, MI

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Using descriptions from popular textbooks, the authors share the importance of introducing the definition so students can make sense of reflections both on and off the coordinate grid.

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