Math is a game, playing with ideas. This blog is about learning, teaching, and just playing around with K-12 mathematics.

Explorations in recreational mathematics

Dedicated to the mathematical arts.

LazyMaths Blog is the official home of the Fastest and Smartest Math. On this blog, we share Speed Math shortcuts and Smart Math techniques. Check us out for some snappy Math ideas and witty Math quiz as you learn Math the intelligently lazy way!

Blog on logic, philosophy of mathematics, and other matters by a Cambridge University lecturer.

Making math fun and accessible.

Mathematics for the interested outsider.

Look for fully developed math investigations that are more than one inch deep, math challenges, Problems of the Day and standardized test practice. The emphasis will always be on developing conceptual understanding in mathematics.

Loren Shure works on design of the MATLAB language at The MathWorks. She writes here about once a week on MATLAB programming and related topics.

Helping people understand basic math and think in effective, useful ways. Perfect for beginners, students, parents and teachers.

Books, stories, poems, algorithms, math and computer science. Some art and anecdotes, too.

Helpful tools and resources for parents who home school their children. Contains many links to other sites along with personal insights provided by the blogger.

Because it’s more fun than getting there in a straight line.

Information about technology and pedagogy for math courses. Posts include technology, software, and websites for online instruction and classroom use. Readers are encouraged to post their own comments and tips related to the blog topics.

Geometry, topology, categories, groups, physics, . . . everything

Education, math, teaching, New York, Bronx, union, language, travel.

Field price winner in Mathematics. Updates on my research and expository papers, discussion of open problems, and other maths-related topics.

Dave Herman's research blog.

Explorations in mathematical beauty

The Mad Hatter and friends look at games, puzzles, problems and techniques - all with a mathematical bent.