My name is Mathew Crawford and I was formerly an administrator for Art of Problem Solving (AoPS), manager of the AoPSWiki, as well as the manager for the online school. I still write books for AoPS. My email address is crawford.mathew @

AoPS recently published my first book, Introduction to Number Theory


I enjoy teaching, so I'll list more of my past teaching experience than anyone would care to know about:

  • AoPS Classes -- I wrote and taught most of the classes at AoPS.
  • Math Jams -- I've taught quite a few of them.
  • Instructor for Avid Academy (2006)
  • Private math instructor (2002-2003, 2006)
  • San Diego Math Circle (2003-2006)
  • Coach of San Diego ARML (2006, 2007)
  • Co-coach of Missouri ARML (1996-97)
  • Mountain Brook Geometry Math Team (1991-1992)
  • Private college math tutor (1995-1996, 2002-2003)
  • Hundreds of hours of volunteer math tutoring (1990-1995)


I enjoy juggling, playing the guitar, and playing ultimate frisbee.

AoPS blog

I blog here. Here are some of my posts:

Currently, these links are broken due to the new blog format. I'll fix them soon.


Math Lessons

Math Contests






Math Contests

As a member of the math team of Louis Pizitz Middle School and Vestavia Hills High School, I felt the following mathematics competitions were beneficial to my early education:

Favorite Media


It will take a long time to make this list, but here's a start:

  • Last Chance to See by Douglas Adams
  • The Hitchhiker's Guide series and anything else by Douglas Adams
  • Ender's Game and Ender's Shadow series by Orson Scott Card
  • The Foundation series by Isaac Asimov
  • The Watchmen
  • Harry Potter series


Ditto on the beginning

  • Lawrence of Arabia
  • Donnie Darko
  • Boondock Saints
  • Harry Potter movies
  • War Games
  • The Matrix (but not so much the sequels)
  • Pitch Black
  • Eternal Sunshine of the Spotless Mind
  • Man on the Moon
  • The Crow
  • Serenity
  • The Last Dragon (B movies are funny)
  • Dune (movies and miniseries)
  • Searching for Bobby Fischer
  • The Good, the Bad, and the Ugly


I don't watch much television and don't have cable, but there are a few shows I enjoy:

  • The Daily Show
  • Firefly
  • The Ali-G Show
  • Deadwood
  • Battlestar Gallactica
  • Star Treks (some seasons)
  • The Young Ones
  • Dune miniseries
  • Six Feet Under
  • South Park
  • The Family Guy
  • X-Files
  • Arrested Development
  • M.A.S.H.
  • Cheers
  • The Simpsons (though it's been overplayed with me)


In no particular order:

  • Radiohead
  • Death Cab for Cutie
  • Postal Service
  • Jump Little Children
  • The Flaming Lips
  • Fishbone
  • Modest Mouse
  • Asian Dub Foundation
  • 311 (just the older stuff)
  • U2
  • Year of the Rabbit
  • They Might Be Giants
  • The Mighty Mighty Bosstones