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The Geometric Supposer by Beth Wilson, Michal Yerushalmy, Judah L. Schwartz

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Introduction: The Many Faces of Educational Innovation

Judah L. Schwartz

Massachusetts Institute of Technology and Harvard Graduate School of Education

Many undertakings in life turn out to be substantially more complex than we imagined them to be at the outset. So it has been with the Geometric Supposer, an educational innovation that has had an important impact on mathematics education in the last half decade. Developing and using the Supposer as an educational tool has forced us to face and think about many unexpected entailments and consequences of our work.

All innovations in education must maintain contact with their philosophical and ideological roots, and we have constantly had to question our own behavior with students and teachers. ...

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