Exploration Enter 4 onto the red pan. Then, enter 9 onto the blue pan. What happens? Why? Reset the balance. Enter 12 onto the red pan. Then, enter a sum (two numbers added together) onto the right ...

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 ...

NCTM established the Mathematics Education Trust (MET) in 1976 to channel the generosity of donors by creating grants for preservice teachers, in-service teachers, coaches, teacher-leaders, teacher ...

Change the number of sectors and increase or decrease their size to create any type of spinner. Then, conduct a probability experiment by spinning the spinner many times. How does the experimental ...

Discover a bold new vision for high school mathematics that empowers students through engaging, real-world learning. This essential publication reimagines the curriculum to focus on student-centered ...

A net is a two-dimensional figure that can be folded into a three-dimensional object. Which of the nets below will form a cube? Click on any net, and determine whether or not it can form a cube. An ...

In the mathematics community, we’ve done a lot of work in promoting a positive mindset about learning mathematics and fostering a sense of belonging in mathematics. However, despite this work, there ...

The Mathematics Education Trust (MET) has selected Joan Ferrini-Mundy and Elizabeth (Betty) Difanis Phillips to receive the NCTM Lifetime Achievement Award. The award honors NCTM members who have ...

Dr. Amanda Jansen is a professor in the School of Education at the University of Delaware. She is a mathematics educator who conducts research on students’ engagement in mathematics classrooms and ...

Dr. Hilary Kreisberg is the Director of the Center for Mathematics Achievement at Lesley University, co-author of the book Adding Parents to the Equation: Understanding Your Child’s Elementary School ...

Dr. Maggie B. McGatha is a Training Associate for Thinking Collaborative providing professional development in Cognitive Coaching and Adaptive Schools. She is a former middle school mathematics ...

Reston, Va. - March 31, 2020 - The National Council of Teachers of Mathematics (NCTM) today announced several initiatives to support teachers and students as the organization recognizes 100 years of ...