National Council of Teachers of Mathematics

Deep Sea Duel

Okta challenges you to a duel! That crazy octopus wants to play you in a game where the first person to choose cards with a specified sum wins. You can choose how many cards, what types of numbers, ...
National Council of Teachers of Mathematics

The Ratio of Circumference to Diameter

Be prepared with additional items of varying sizes. Items that are too small (such as a dime) and too large (such as the opening of an umbrella) tend to be less accurate. After the measurements have ...
National Council of Teachers of Mathematics

Members-Only Access

Founded in 1920, the National Council of Teachers of Mathematics (NCTM) is the world's largest mathematics education organization throughout the United States and Canada.
National Council of Teachers of Mathematics

Plan Your Visit

The NCTE-NCTM Joint Conference encourages a safe and respectful environment that is focused on building a better community during your conference experience. We strive to host inclusive, accessible ...
National Council of Teachers of Mathematics

Conference Strands

Guided by strands focused on belonging, agency, connected learning and rigor, reflective practice, and supportive leadership, this Conference prioritizes learning experiences that Support educators as ...
National Council of Teachers of Mathematics

Call for Proposals

Submission Deadline: Extended until 9:00 AM ET on Tuesday, March 24, 2026. The NCTE–NCTM Joint Conference for Elementary Literacy and Mathematics—August 3–5, 2026 in Charlotte, NC—will bring literacy ...
National Council of Teachers of Mathematics

Preconference Workshops

Description: Participants will experience some activities and classroom routines from the NCTM resource book Lessons and Investigations to Build Confidence: Elevating High School Mathematics. This ...
National Council of Teachers of Mathematics

NCTM and Teachers College Press Announce Collaborative Publishing Program

NCTM and Teachers College Press Announce Collaborative Publishing Program (1) ...
National Council of Teachers of Mathematics

NCTM Partners with TSA to Support TEAMS, a STEM Competition

“NCTM is committed to expanding meaningful opportunities for students to engage deeply with mathematics. Partnering with TSA through TEAMS aligns with our shared goal of helping students see ...
National Council of Teachers of Mathematics

Members-Only Access

Members-Only Access. Log in above or click Join Now to enjoy these exclusive benefits: Award-Winning Journals; Free Classroom-Ready Activities; Member-Only Online Teaching Resourc ...
National Council of Teachers of Mathematics

Catalyzing Change in Early Childhood and Elementary Mathematics:

The purpose of this book study guide is to provide stakeholder groups with a tool to initiate needed critical conversations and actions in early childhood and elementary mathematics. Format: The book ...