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 ...

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 ...

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 ...

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 ...

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 ...

Educational decisions made by teachers, school administrators, and other professionals have important consequences for students and for society. The Principles for school mathematics provide guidance ...

A Basket of Carrots Help the Easter Bunny figure out how many trips he'll need to deliver all his carrots.

This tool allows you to learn about various geometric solids and their properties. You can manipulate and color each shape to explore the number of faces, edges, and vertices, and you can also use ...

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 ...

The National Council of Teachers of Mathematics is the public voice of mathematics education, and a professional membership association supporting teachers to ensure equitable mathematics learning of ...