NCTM is committed to bringing the math community together for engaging content that will help transform the learning and teaching of mathematics. Join your colleagues for the NCTM 2025 Kansas City Spring Conference and Exposition, February …

The National Council of Teachers of Mathematics provides resources and support for mathematics educators.

Tessellation Creator Grade: 3rd to 5th, 6th to 8th A tessellation is a repeating pattern of polygons that covers a plane with no gaps or overlaps. What kind of tessellations can you make out of regular polygons? This interactive is optimized for your desktop and tablet.

The composite standards [of Hong Kong, Korea and Singapore] have a number of features that can inform an international benchmarking process for the development of K–6 mathematics standards in the U.S. First, the composite standards concentrate the early learning of mathematics on the number, measurement, and geometry strands with less emphasis on data analysis and little exposure to algebra ...

NCTM's Standards publications present a vision of appropriate mathematical goals for all students. This vision is based on the assumption that all students are capable of learning mathematics, and it's at the heart of the NCTM's efforts to bring high-quality mathematics learning experiences to all teachers and students. Principles and Standards Principles and Standards for School Mathematics ...

Algebra Tiles Grade: 6th to 8th, High School Use tiles to represent variables and constants, learn how to represent and solve algebra problem. Solve equations, substitute in variable expressions, and expand and factor. Flip tiles, remove zero pairs, copy and arrange, and make your way toward a better understanding of algebra. This interactive is …

The Product Game is a fun, interactive game that exercises your skill with factors and multiples. This Product Game Investigation was adapted with permission and guidance from Prime Time: Factors and Multiples, Connected Mathematics Project, G. …

Adding It Up advocates for viewing mathematical proficiency as five interwoven and interdependent strands. A deep understanding of mathematics requires learners to connect pieces of knowledge and use these connections to productively solve problems.

Welcome to the largest organization of mathematics educators. Thank you for joining the National Council of Teachers of Mathematics! Your membership demonstrates commitment to continuous learning and to ensuring equitable mathematics learning of the highest quality for each and every student. Your new NCTM membership means access to an expansive library of resources and connection with a ...

Founded in 1920, the National Council of Teachers of Mathematics (NCTM) is the world's largest mathematics education organization. Interested in membership? Learn more about exclusive member benefits and discounts and join today. As we look forward to NCTM’s second century of leadership, this NCTM 100 timeline reflects on the organization’s contributions and accomplishments, and places ...