Children explore concepts of capacity and height measurement through sand play in nursery class.
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Exploring Young Children’s Math Thinking in Sandcastle Building
Hannah Tan and Cynthia Lim
Using Public Records to Scaffold Joint Sense Making
Keith R. Leatham, Blake E. Peterson, Ben Freeburn, Sini W. Graff, Laura R. Van Zoest, Shari L. Stockero, and Nitchada Kamlue
Teachers can more productively use board work to scaffold joint sense making.
Advancing Agency Through Conjecturing
Kristin Doherty
Support students in conjecturing in ways that can promote their agency in the learning process.
Making Sense of Algebraic Expressions in Context
Isabel White, Michael Foster, and Joanne Lobato
Explore three challenges that students faced and how they made progress.
Balloons and Weights: Integer Subtraction in Context
Christine Andrews-Larson, Jonee Wilson, Matthew Mauntel, Jessica Smith, and Thomeca Hawthorne-Glover
Support students in developing contextual reasoning about integer subtraction.
Math, Will You Be My Valentine?
Jennifer M. Bay-Williams
Non-Euclidean Geometry Lesson Promotes Mathematical Reasoning
Derek A. Williams, Kelly Fulton, Travis Silver, and Alec Nehring
A two-day lesson on taxicab geometry introduces high school students to a unit on proof.
Puddle Play!
Deanna Pecaski McLennan
Examining Errors and Framing Feedback
Lindsay Vanoli and Jennifer Luebeck
Engaging mathematics students with peers in analyzing errors and formulating feedback improves disposition, increases understanding, and helps students uncover and correct misconceptions while informing opportunities for targeted instruction.
Promoting Discourse: Fractions on Number Lines
Susan Ahrendt, Debra Monson, and Kathleen Cramer
Examine fourth graders’ thinking about the unit, partitioning, order, and equivalence on the number line and consider ways to orchestrate mathematical discussions through the Five Practices.
