Curriculum, Lesson Plans, & Teaching Activities | K-12

"Common Core is driving a lot of the growth in open education production and curation, with new databases and sources popping up left and right. It can be overwhelming to wade through everything, and find a source that works for your classroom. With that in mind, here are some math open education resources for elementary educators."

"DASL (pronounced "dazzle") is an online library of datafiles and stories that illustrate the use of basic statistics methods. We hope to provide data from a wide variety of topics so that statistics teachers can find real-world examples that will be interesting to their students."

Preschool through 8th grade math lesson plans.

An annotated catalog of mathematics and mathematics education web sites

Helping students gain understanding and self-confidence in algebra. Link categories include: preliminary topics, beginning algebra topics, intermediate algebra topics, advanced algebra topics, solving word problems, and an appendix.

Math lesson plans from kindergarten through high school.

Online teacher resource for calculus lesson plans.

A listing of 16 famous unsolved problems in math.

An encyclopedic website containing definitions and discussions of every aspect of mathematics.

A web-based computational knowledge engine of facts & figures of "math & more". Includes information for educators.