Math by the Month is a regular department of the journal. It features collections of short activities focused on a monthly theme. These articles aim for an inquiry or problem-solving orientation that includes at least four activities each for grade bands K—2, 3—4, and 5—6. In this issue, the problems capitalize on the natural curiosity of children to explore measurement.

Contributor Notes

Liat Zippin, liatzippin@yahoo.com, is a teacher in Aventura, Florida. She enjoys infusing literature, the arts, and real-life contexts into her instruction to engage children in mathematical thinking.

Lisa Englard, lisa@khanacademy.org, is a content specialist at Khan Academy. Her work involves ensuring that the math exercises on Khanacademy.org meet the focus and rigor requirements of the Common Core State Standards for Mathematics.

Edited by Mark Amador, mamador@aventuracharter.org, who teaches seventh-grade mathematics at Aventura City of Excellence School in Aventura, Florida. E-mail problem collections for the editor to consider for future Math by the Month columns. See detailed submission guidelines at www.nctm.org/tcmdepartments. E-mail creative solutions and adapted problems to tcm@nctm.org for potential publication, noting Readers Exchange in the subject line.

(Corresponding author is Zippin liatzippin@yahoo.com)
(Corresponding author is Englard lisa@khanacademy.org)
(Corresponding author is Amador mamador@aventuracharter.org)
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