NSTA is a vibrant community of 35,000 science educators and professionals committed to best practices in teaching science and its impact on student learning. NSTA offers high-quality science resources ...

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? What shapes tessellate? If shapes can ...

A comprehensive and coherent set of mathematics standards for each and every student from prekindergarten through grade 12, Principles and Standards is the first set of rigorous, college and career ...

During the NCTM Capitol Hill Day visit last week, legislators asked if we could share stories of how recent changes are impacting education. Has anything changed since the start of the year? Are ...

Representatives from the National Council of Teachers of Mathematics (NCTM) Board of Directors met with congressional leaders on Capitol Hill on Thursday, February 27, to advocate for policies that ...

Build up to algebraic thinking by exploring this balance tool using shapes of unknown weight. Challenge yourself to find the weight of each shape in one of six built-in sets or a random set. Two other ...

The Factor Game applet was adapted with permission and guidance from "Prime Time: Factors and Multiples," Connected Mathematics Project, G. Lappan, J. Fey, W ...

When students become active doers of mathematics, the greatest gains of their mathematical thinking can be realized. The process of sense making begins when we create classrooms full of curious ...

Our students need mathematics to make sense of their world and increase their opportunities. As teachers, administrators, and education leaders, each and every student is counting on us, our policies, ...

Students analyze the structure of algebraic expressions and a graph to determine what information each expression readily contributes about the flight of a horseshoe. This task is particularly ...