Los 10 principales competidores de math-blog.com

mathworld.wolfram.com

A connected graph G is distance-regular if for any vertices x and y of G and any integers i,j=0, 1, ...d (where d is the graph diameter), the number of vertices at distance i from x and distance j from y depends only on i, j, and the graph distance between x and y, independently of the choice of x and y. In particular, a distance-regular graph is a graph for which there exist integers b_i,c_i,i=0,...,d such that for any two vertices x,y in G and distance i=d(x,y), there are exactly c_i...

mathmomblog.wordpress.com

Ramblings of a Math Mom

math.stackexchange.com

Q&A for people studying math at any level and professionals in related fields

homeschoolmath.blogspot.com

The two videos below show how you could teach multi-digit multiplication, or the multiplication algorithm, or multiplying in columns to stud...

divisbyzero.com

I was looking for information about mathematics programs at other liberal arts colleges, so I put together this collection of links. I thought others might find it helpful, so I’m posting it …

mathblog.com

1. The Tenth Dimension 2. Outside in (Turning a sphere inside out) 3. Flatland the film (Trailer) The full movie is available on DVD, and of course, you can also get “Flatland: A Romance of Many Dimensions”, dirt cheap (a classic geek novel for less than 4 bucks). If you prefer, you could pick up the annotated hardcover version: “The Annotated Flatland: A Romance of Many Dimensions”. Highly recommended. 4. Math Education: An Inconvenient Truth This short video shows what’s wrong with the current widely adopted methods of teaching mathematics (fortunately though, such practices have not caught on everywhere). 5.