Students move from slides, flips, and turns into reasoning about the characteristics of rigid transformations.

Contributor Notes

Peter Wiles,, is a professor and mathematics education graduate coordinator at Eastern Illinois University in Charleston. He is interested in instructional approaches that support the development of students' geometric reasoning. Travis Lemon,, teaches mathematics at American Fork Junior High School in American Fork, Utah. He is also involved in professional development and curriculum development. Alessandra King,, is a math teacher at Holton-Arms School in Bethesda, Maryland. Her interests include secondary education, educational consulting, lesson planning, educational technology, and instructional design.

(Corresponding author is Wiles author is Lemon author is King
Mathematics Teaching in the Middle School


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