Links

Sites I send people to. Art of Problem Solving for books, classes and practice; Exeter for what a problem-based curriculum looks like end to end.

Art of Problem Solving

• Art of Problem Solving

  artofproblemsolving.com

  Books, online classes and the community forums. The center of gravity for competition math in the US.

• Alcumus

  artofproblemsolving.com

  Free adaptive problem sets that follow the AoPS books topic by topic. Needs a free account.

• AoPS Wiki: AMC 8 problems and solutions

  artofproblemsolving.com

  Every past AMC 8, with community solutions. Also the AMC 10/12, AIME and more from the same index.

• Beast Academy

  beastacademy.com

  The AoPS program for grades 1–5: books plus an online version with practice.

Curricula

• Phillips Exeter Academy mathematics problem sets

  exeter.edu

  Exeter teaches math entirely from problem sets (Math 1 through Math 6), discussed around a Harkness table. The sets are free PDFs and are a model of how a problem-based course is sequenced.

Competitions

• MAA American Mathematics Competitions

  maa.org

  AMC 8, AMC 10/12 and AIME: dates, registration and the official archive.

• MOEMS (Math Olympiads for Elementary and Middle Schools)

  moems.org

  Five short contests a year for school teams, grades 4–8.

• MATHCOUNTS

  mathcounts.org

  The middle-school competition series; the free Problem of the Week archive is good practice on its own.