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Surani Joshua, James Drimalla, Dru Horne, Heather Lavender, Alexandra Yon, Cameron Byerley, Hyunkyoung Yoon, and Kevin Moore

The Relative Risk Tool web app allows students to compare risks relating to COVID-19 with other more familiar risks, to make multiplicative comparisons, and to interpret them.

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Wendy S. Bray, Luz A. Maldonado, and Introduction by: Desiree Y. Harrison

From the Archives highlights articles from NCTM’s legacy journals, as chosen by leaders in mathematics education.

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Lateefah Id-Deen, Rachelle Ebanks, and Michelle Cirillo

Reflect individually and collectively on professional learning that inspires positive change in supporting Black students’ mathematical success.

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Michelle T. Chamberlin and Robert A. Powers

Growing Problem Solvers provides four original, related, classroom-ready mathematical tasks, one for each grade band. Together, these tasks illustrate the trajectory of learners’ growth as problem solvers across their years of school mathematics.

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Alice Aspinall

This article describes how fortuitous mathematical moments should be noticed, encouraged, embraced, and capitalized upon.

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Elizabeth G. Arnold, Elizabeth A. Burroughs, Mary Alice Carlson, Elizabeth W. Fulton, and Megan H. Wickstrom

Ear to the Ground features voices from several corners of the mathematics education world.

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Justin Gregory Johns, Chris Harrow, and Peter Nikolai

Problems to Ponder provides 28 varying, classroom-ready mathematics problems that collectively span PK–12, arranged in the order of the grade level. Answers to the problems are available online. Individuals are encouraged to submit a problem or a collection of problems directly to mtlt@nctm.org. If published, the authors of problems will be acknowledged.

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Alexandra Martinez

This department provides a space for current and past PK–12 teachers of mathematics to connect with other teachers of mathematics through their stories that lend personal and professional support.

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Tomika R. Altman

Everyone has a story to tell, a story that provides an individual insight as to what makes you, you. It defines your uniqueness, your likes, your dislikes, your hopes, your dreams, and more. It’s that story that you are known for. It’s that story that your friends might use to introduce you so that people can get to know you better. Everyone has that story, but in terms of mathematics, what is your mathematical story? Do you remember the moment you fell in love with mathematics? Or for some individuals, when was the moment you felt that you were

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S. Asli Özgün-Koca and Monica G. McLeod

Growing Problem Solvers provides four original, related, classroom-ready mathematical tasks, one for each grade band. Together, these tasks illustrate the trajectory of learners’ growth as problem solvers across their years of school mathematics.