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 ...

"We live in uncertain times. Public health is at the forefront of our minds, and our schools have been disrupted in ways we have never seen. Although no one can predict how education might look in the ...

Thank you to all the speakers for making this such a memorable and impactful experience for so many of your peers. Here are just a few comments attendees had: Such a great opportunity for PD for our ...

Did you know that for over 2,000 years people believed that no proof could be developed for the Pythagorean Theorem using trigonometry? In his book The Pythagorean Proposition (1968), mathematician ...

Building Sets of 13 and 14 Lesson PreK to 2nd Building Sets of 15 and 16 Lesson PreK to 2nd Building Sets of 17 and 18 Lesson PreK to 2nd Building Sets of 19 and 20 Lesson PreK to 2nd Building Sets of ...

NCTM's Mathematics teacher preparation program recognition standards and review process are used by institutions seeking accreditation from the Council for the Accreditation of Educator Preparation ...

This applet allows students to individually practice working with relationships among fractions and ways of combining fractions. For a two person version of this applet see the Fraction Track ...

The Common Core State Standards (CCSS) are a set of academic standards in mathematics and English language arts/literacy (ELA) developed under the direction of the Council of Chief State School ...

These grade-band specific professional learning modules are focused on the Effective Teaching Practices and Guiding Principles from Principles to Actions: Ensuring Mathematical Success for All.

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 ...

Creating, supporting, and sustaining a culture of access and equity require being responsive to students' backgrounds, experiences, cultural perspectives, traditions, and knowledge when designing and ...