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 ...

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 ...

How do you help your students demonstrate mathematical proficiency toward the learning expectations of the Common Core State Standards (CCSS)? This teacher guide illustrates how to sustain successful ...

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 ...

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 ...

<p>In this lesson, students will explore algebraic patterns by determining how many tables are needed to seat a growing number of guests at a Quinceañera, making connections between mathematical ...

In this lesson, students will apply number theory by using the greatest common factor to fairly divide different types of candy into identical goodie bags, thereby connecting mathematical reasoning to ...

In this lesson, students will apply proportional reasoning to a culturally relevant context by determining how much masa harina is needed to make the dough for tamales for a holiday posada, connecting ...

Joint Statement from NCTM, NCTE, NCSS and NSTA on Withholding of Education Funding As representatives of the K-12 teachers and leaders in the core subject areas, we are alarmed by the decision to ...

Be prepared with additional items of varying sizes. Items that are too small (such as a dime) and too large (such as the opening of an umbrella) tend to be less accurate. After the measurements have ...

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 ...