Banner image for O E R in Mathematics Professional Development Project

A free and open set of professional development resources for learning and teaching mathematics.


Project Overview

Project Partners

What is OER?

Curriculum, Assessment, & Instruction

Project Resources


OER for Mathematics

OER in Mathematics

OER for mathematics include many types of resources and tools. The resources below were selected for their applicability and usefulness for Maine 7-12 mathematics learners and educators.

Mathematics Applications

The resources below include OER applications that can be used for mathematics learning and teaching.

Mathematics Applets and Interactive Tools

The link below includes specific lists of applets and tools. Some sites include tools that are not OER (are not licensed under Creative Commons). Please check the licensing information for specific tools.


Repositiories include content from multiple sources and may include lesson plans, student activities, handouts, links, and other resources. Some repositories include a system to rate resources, and some allow you to upload your own materials to share with other educators. The list below contains OER sites that have been through a review by staff at Education Development Center, Inc. (EDC). The selection process used the following criteria:

Mathematics Content Focused on K-12 Resources

Mathematics Content Focused on Higher Education Resources

This page may be updated without notification.


All links in this site have been checked; however, the Web is an ever-changing medium, and at times links can go down without our noticing. If you find a broken link WITHIN a reading or resource, only the owners of the website or article where the link is found can repair their own internal links. Report broken links on this Web page.

This resource was collaboratively designed by OER in Mathematics Professional Development Project partners from Maine RSU#54 & RSU#11 and staff from Education Development Center, Inc. This work is licensed under the Creative Commons Attribution-Non Commercial-Share Alike 3.0 License.