Classroom Resources / Illuminations Shape Sorter Grade: 6th to 8th A rhombus has four congruent sides. A rectangle has four congruent angles. But a square has four congruent sides and four congruent ...

Thinking about numbers using frames of 5 can be a helpful way to learn basic number facts. The four games that can be played with this applet help to develop counting and addition skills. (This applet ...

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 ...

Departments consist of short, focused articles along a particular theme or in a specific format. Writing for a department is a great way for teachers to see their names is print! Short articles (700 – ...

Department Descriptions from Teaching Children Mathematics News & Views Share news about happenings in the field of elementary school mathematics education, views on matters pertaining to teaching and ...

Each calendar needs a variety of problems to appeal to a wide range of students in grades 8-12. Topics from arithmetic, algebra, geometry, number theory, statistics, discrete mathematics, probability ...

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 programs of the National Council of Teachers of Mathematics present a variety of viewpoints. The content and views expressed or implied in these presentations should not be interpreted as official ...

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 ...

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 ...

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 ...