We discuss how discourse actions can provide students greater access to high quality mathematics. We define discourse actions as what teachers or students say or do to elicit student contributions about a mathematical idea and generate ongoing discussion around student contributions. We provide rubrics and checklists for readers to use.
Amber G. Candela, Melissa D. Boston, and Juli K. Dixon
Martin V. Bonsangue
In the absence of a decimal number system and representations for square roots, Archimedes estimated the value of pi using inscribed and circumscribed polygons to a circle.
Students analyze a photograph to solve mathematical questions related to the images captured in the photograph. This month, photographs of the Salvador Dali Museum in St. Petersburg, Florida, serve a generous helping of pi from the editors.