Revisiting Mr. Tall and Mr. Short

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While students are solving a proportion problem, their work in a measure space will enable teachers to take the measure of their thinking.

Contributor Notes

Suzanne M. Riehl,, teaches mathematics, including calculus and the history of mathematics.

Olof Bjorg Steinthorsdottir,, works with teachers in professional development seminars and with future teachers in elementary mathematics content and methods courses. They are colleagues in the mathematics department at the University of Northern Iowa in Cedar Falls and are interested in how students make sense of mathematics.

(Corresponding author is Riehl author is Steinthorsdottir
Mathematics Teaching in the Middle School


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