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Middle School Math Grades 5-8, Ages 10-13, MATHCOUNTS, AMC 8

Grades 5-8, Ages 10-13, MATHCOUNTS, AMC 8

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Middle School Math Grades 5-8, Ages 10-13, MATHCOUNTS, AMC 8

Grades 5-8, Ages 10-13, MATHCOUNTS, AMC 8

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k a My Retirement & New Leadership at AoPS

rrusczyk 1571

I write today to announce my retirement as CEO from Art of Problem Solving. When I founded AoPS 22 years ago, I never imagined that we would reach so many students and families, or that we would find so many channels through which we discover, inspire, and train the great problem solvers of the next generation. I am very proud of all we have accomplished and I’m thankful for the many supporters who provided inspiration and encouragement along the way. I'm particularly grateful to all of the wonderful members of the AoPS Community!

I’m delighted to introduce our new leaders - Ben Kornell and Andrew Sutherland. Ben has extensive experience in education and edtech prior to joining AoPS as my successor as CEO, including starting like I did as a classroom teacher. He has a deep understanding of the value of our work because he’s an AoPS parent! Meanwhile, Andrew and I have common roots as founders of education companies; he launched Quizlet at age 15! His journey from founder to MIT to technology and product leader as our Chief Product Officer traces a pathway many of our students will follow in the years to come.

Thank you again for your support for Art of Problem Solving and we look forward to working with millions more wonderful problem solvers in the years to come.

And special thanks to all of the amazing AoPS team members who have helped build AoPS. We’ve come a long way from here:IMAGE

1571 replies

rrusczyk

Mar 24, 2025

SmartGroot

Mar 26, 2025

k a March Highlights and 2025 AoPS Online Class Information

jlacosta 0

March is the month for State MATHCOUNTS competitions! Kudos to everyone who participated in their local chapter competitions and best of luck to all going to State! Join us on March 11th for a Math Jam devoted to our favorite Chapter competition problems! Are you interested in training for MATHCOUNTS? Be sure to check out our AMC 8/MATHCOUNTS Basics and Advanced courses.

Are you ready to level up with Olympiad training? Registration is open with early bird pricing available for our WOOT programs: MathWOOT (Levels 1 and 2), CodeWOOT, PhysicsWOOT, and ChemWOOT. What is WOOT? WOOT stands for Worldwide Online Olympiad Training and is a 7-month high school math Olympiad preparation and testing program that brings together many of the best students from around the world to learn Olympiad problem solving skills. Classes begin in September!

Do you have plans this summer? There are so many options to fit your schedule and goals whether attending a summer camp or taking online classes, it can be a great break from the routine of the school year. Check out our summer courses at AoPS Online, or if you want a math or language arts class that doesn’t have homework, but is an enriching summer experience, our AoPS Virtual Campus summer camps may be just the ticket! We are expanding our locations for our AoPS Academies across the country with 15 locations so far and new campuses opening in Saratoga CA, Johns Creek GA, and the Upper West Side NY. Check out this page for summer camp information.

Be sure to mark your calendars for the following events:
[list][*]March 5th (Wednesday), 4:30pm PT/7:30pm ET, HCSSiM Math Jam 2025. Amber Verser, Assistant Director of the Hampshire College Summer Studies in Mathematics, will host an information session about HCSSiM, a summer program for high school students.
[*]March 6th (Thursday), 4:00pm PT/7:00pm ET, Free Webinar on Math Competitions from elementary through high school. Join us for an enlightening session that demystifies the world of math competitions and helps you make informed decisions about your contest journey.
[*]March 11th (Tuesday), 4:30pm PT/7:30pm ET, 2025 MATHCOUNTS Chapter Discussion MATH JAM. AoPS instructors will discuss some of their favorite problems from the MATHCOUNTS Chapter Competition. All are welcome!
[*]March 13th (Thursday), 4:00pm PT/7:00pm ET, Free Webinar about Summer Camps at the Virtual Campus. Transform your summer into an unforgettable learning adventure! From elementary through high school, we offer dynamic summer camps featuring topics in mathematics, language arts, and competition preparation - all designed to fit your schedule and ignite your passion for learning.[/list]
Our full course list for upcoming classes is below:
All classes run 7:30pm-8:45pm ET/4:30pm - 5:45pm PT unless otherwise noted.

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0 replies

jlacosta

Mar 2, 2025

0 replies

is 8 divisible by 3

Soupboy0 59

Is 8 divisible by 3?

59 replies

1 viewing

Soupboy0

Mar 25, 2025

SpeedCuber7

15 minutes ago

2025 MATHCOUNTS State Hub

SirAppel 99

Previous Years' "Hubs": (2022) (2023) (2024)Please Read

Now that it's April and we're allowed to discuss, and no one else has made this yet ...
[list=disc]
[*] CA: 43 (45 44 43 43 43 42 42 41 41 41)
[*] NJ: 43 (45 44 44 43 39 42 40 40 39 38) *
[*] NY: 42 (43 42 42 42 41 40)
[*] TX: 42 (43 43 43 42 42 40 40 38 38 38)
[*] MA: 41 (45 43 42 41)
[*] WA: 41 (41 45 42 41 41 41 41 41 41 40) *
[*] FL: 39 (42 41 40 39 38 37 37)
[*] IN: 39 (41 40 40 39 ?? 35)
[*] NC: 39 (42 42 41 39)
[*] OR: 38 (44 ?? 38 38)
[*] PA: 38 (41 40 40 38 38 37 36 36 34 34) *
[*] MD: 37 (43 39 39 37 37 37)
[*] CT: 36 (44 39 ?? 36)
[*] MI: 36 (41 41 39 36 37 37 36 36 36 36) *
[*] MN: 36 (40 36 36 36 35 35 35 34)
[*] CO: 35 (41 37 37 35 35 35 ?? 31 31 30) *
[*] OH: 35 (41 37 36 35) *
[*] AR: 34 (46 45 35 34 33 31 31 31 29 29)
[*] WI: 34 (40 37 37 34 35 30 28 29 29 29) *
[*] NH: 31 (42 35 33 31 30)
[*] DE: 30 (34 33 32 30 30 29 28 27 26? 24)
[*] SC: 30 (33 33 31 30)
[*] RI: 29? (36 ?? ?? ??) *
[*] NE: 28 (34 30 28 28 27 27 26 26 25 25)
[*] SD: 22 (30 29 24 22 22 22 21 21 20 20)
[/list]

* means that CDR is official in that state.

Notes

For those asking about the removal of the tiers, I'd like to quote Jason himself:
[quote=peace09]
learn from my mistakes
[/quote]

Help contribute by sharing your state's cutoffs!
As per last year's guidelines, refrain from problem discussion until their official release on the MATHCOUNTS website.

99 replies

+4 w

SirAppel

Yesterday at 12:22 PM

TiguhBabeHwo

20 minutes ago

mathcounts state score thread

Soupboy0 28

\begin{table}[]
$\begin{tabular}{llllll} Username & Score & Sprint & Target & Nats? & Sillies \\ Soupboy0 & 40 & 24 & 16 & yes & 6 \\ & & & & & \\ & & & & & \end{tabular}$ \end{table}

28 replies

Soupboy0

Yesterday at 2:53 PM

derekwang2048

40 minutes ago

The daily problem!

Leeoz 54

Every day, I will try to post a new problem for you all to solve! If you want to post a daily problem, you can! :)

Please hide solutions and answers, hints are fine though! :)

The first problem is:
[quote=March 21st Problem]Alice flips a fair coin until she gets 2 heads in a row, or a tail and then a head. What is the probability that she stopped after 2 heads in a row? Express your answer as a common fraction.[/quote]

Past Problems!

54 replies

Leeoz

Mar 21, 2025

stjwyl

an hour ago

High School Math Grades 9-12, Ages 13-18

Grades 9-12, Ages 13-18

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High School Math Grades 9-12, Ages 13-18

Grades 9-12, Ages 13-18

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120,242 topics

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k a My Retirement & New Leadership at AoPS

rrusczyk 1571

1571 replies

rrusczyk

Mar 24, 2025

SmartGroot

Mar 26, 2025

k a March Highlights and 2025 AoPS Online Class Information

jlacosta 0

0 replies

jlacosta

Mar 2, 2025

0 replies

Geo Mock #3

Bluesoul 2

Consider square $ABCD$ with side length of $5$ . The point $P$ is selected on the diagonal $AC$ such that $\angle{BPD}=135^{\circ}$ . Denote the circumcenters of $\triangle{BPA}, \triangle{APD}$ as $O_1,O_2$ . Find the length of $O_1O_2$

2 replies

Bluesoul

Yesterday at 7:02 AM

mathprodigy2011

an hour ago

Complex + Radical Evaluation

Saucepan_man02 3

Evaluate: (without calculators)
$(\sqrt{6 - 2 \sqrt{5}} + i \sqrt{2 \sqrt{5} + 10})^5 + (\sqrt{6 - 2 \sqrt{5}} - i \sqrt{2 \sqrt{5} + 10})^5$

3 replies

Saucepan_man02

Mar 17, 2025

SmartHusky

Yesterday at 4:45 PM

Geo Mock #2

Bluesoul 1

Consider convex quadrilateral $ABCD$ such that $AB=6, BC=10, \angle{ABC}=90^{\circ}$ . Denote the midpoints of $AD,CD$ as $M,N$ respectively, compute the area of $\triangle{BMN}$ given the area of $ABCD$ is $50$ .

1 reply

Bluesoul

Yesterday at 6:59 AM

Sedro

Yesterday at 4:36 PM

Geo Mock #1

Bluesoul 1

Consider the rectangle $ABCD$ with $AB=4$ . Point $E$ lies inside the rectangle such that $\triangle{ABE}$ is equilateral. Given that $C,E$ and the midpoint of $AD$ are on the same line, compute the length of $BC$ .

1 reply

Bluesoul

Yesterday at 6:58 AM

Sedro

Yesterday at 4:30 PM

Contests & Programs AMC and other contests, summer programs, etc.

AMC and other contests, summer programs, etc.

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Contests & Programs AMC and other contests, summer programs, etc.

AMC and other contests, summer programs, etc.

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k a My Retirement & New Leadership at AoPS

rrusczyk 1571

1571 replies

rrusczyk

Mar 24, 2025

SmartGroot

Mar 26, 2025

k a March Highlights and 2025 AoPS Online Class Information

jlacosta 0

0 replies

jlacosta

Mar 2, 2025

0 replies

USAMO Scores Release Date

CrunchyCucumber 9

Does anyone know when individual scores, and medal+MOP cutoffs on the USAMO will be officially released? The website says 2-3 weeks, but I’ve heard it takes much longer in previous year.

9 replies

CrunchyCucumber

Yesterday at 6:22 PM

mathfan2010

a few seconds ago

SuMAC Email

miguel00 2

Did anyone get an email from SuMAC checking availability for summer camp you applied for (residential/online)? I don't know whether it is a good sign or just something that everyone got.

2 replies

+1 w

miguel00

10 minutes ago

jkim0656

2 minutes ago

MOP Cutoffs Out?

Mathandski 10

MAA has just emailed a press release announcing the formula they will be using this year to come up with the MOP cutoff that applies to you! Here's the process:

1. Multiply your age by $1434$ , let $n$ be the result.

2. Calculate $\varphi(n)$ , where $\varphi$ is the Euler's totient theorem, which calculates the number of integers less than $n$ relatively prime to $n$ .

3. Multiply your result by $1434$ again because why not, let the result be $m$ .

4. Define the Fibonacci sequence $F_0 = 1, F_1 = 1, F_n = F_{n-1} + F_{n-2}$ for $n \ge 2$ . Let $r$ be the remainder $F_m$ leaves when you divide it by $69$ .

5. Let $x$ be your predicted USA(J)MO score.

6. You will be invited if your score is at least $\lfloor \frac{x + \sqrt[r]{r^2} + r \ln(r)}{r} \rfloor$ .

7. Note that there may be additional age restrictions for non-high schoolers.

See here for MAA's original news message. If you are interested, try finding, with proof, whether a high-school aged student would be able to qualify for MOP following this rubric.

Enjoy this low-effort april fool's joke. I was kinda disappointed there wasn't any here this year.

10 replies

+1 w

Mathandski

2 hours ago

sadas123

12 minutes ago

AMC 10/AIME Study Forum

PatTheKing806 107

[center]

Me (PatTheKing806) and EaZ_Shadow have created a AMC 10/AIME Study Forum! Hopefully, this forum wont die quickly. To signup, do /join or \join.

Click here to join! (or do some pushups) :P

People should join this forum if they are wanting to do well on the AMC 10 next year, trying get into AIME, or loves math!

107 replies

PatTheKing806

Mar 27, 2025

PatTheKing806

an hour ago

High School Olympiads Regional, national, and international math olympiads

Regional, national, and international math olympiads

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High School Olympiads Regional, national, and international math olympiads

Regional, national, and international math olympiads

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311,457 topics

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k a My Retirement & New Leadership at AoPS

rrusczyk 1571

1571 replies

rrusczyk

Mar 24, 2025

SmartGroot

Mar 26, 2025

k a March Highlights and 2025 AoPS Online Class Information

jlacosta 0

0 replies

jlacosta

Mar 2, 2025

0 replies

Inspired by old results

sqing 7

Source: Own

Let $a,b,c> 0$ and $abc=1$ . Prove that
$\frac1{a^2+a+k}+\frac1{b^2+b+k}+\frac1{c^2+c+k}\geq \frac{3}{k+2}$ Where $0<k \leq 1.$

7 replies

sqing

Monday at 1:42 PM

SunnyEvan

2 hours ago

Modular Arithmetic and Integers

steven_zhang123 3

Integers $n, a, b \in \mathbb{Z}^+$ satisfies $n + a + b = 30$ . If $\alpha < b, \alpha \in \mathbb{Z^+}$ , find the maximum possible value of $\sum_{k=1}^{\alpha} \left \lfloor \frac{kn^2 \bmod a }{b-k} \right \rfloor$ .

3 replies

steven_zhang123

Mar 28, 2025

steven_zhang123

2 hours ago

Polynomials and their shift with all real roots and in common

Assassino9931 4

Source: Bulgaria Spring Mathematical Competition 2025 11.4

We call two non-constant polynomials friendly if each of them has only real roots, and every root of one polynomial is also a root of the other. For two friendly polynomials $P(x), Q(x)$ and a constant $C \in \mathbb{R}, C \neq 0$ , it is given that $P(x) + C$ and $Q(x) + C$ are also friendly polynomials. Prove that $P(x) \equiv Q(x)$ .

4 replies

1 viewing

Assassino9931

Mar 30, 2025

Assassino9931

2 hours ago

2025 Caucasus MO Seniors P7

BR1F1SZ 2

Source: Caucasus MO

From a point $O$ lying outside the circle $\omega$ , two tangents are drawn touching $\omega$ at points $M$ and $N$ . A point $K$ is chosen on the segment $MN$ . Let points $P$ and $Q$ be the midpoints of segments $KM$ and $OM$ respectively. The circumcircle of triangle $MPQ$ intersects $\omega$ again at point $L$ ( $L \neq M$ ). Prove that the line $LN$ passes through the centroid of triangle $KMO$ .

2 replies

BR1F1SZ

Mar 26, 2025

sami1618

2 hours ago

College Math Topics in undergraduate and graduate studies

Topics in undergraduate and graduate studies

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College Math Topics in undergraduate and graduate studies

Topics in undergraduate and graduate studies

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k a My Retirement & New Leadership at AoPS

rrusczyk 1571

1571 replies

rrusczyk

Mar 24, 2025

SmartGroot

Mar 26, 2025

k a March Highlights and 2025 AoPS Online Class Information

jlacosta 0

0 replies

jlacosta

Mar 2, 2025

0 replies

Putnam 1953 B1

sqrtX 6

Source: Putnam 1953

Is the infinite series
$\sum_{n=1}^{\infty} \frac{1}{n^{1+\frac{1}{n}}}$ convergent?

6 replies

sqrtX

Jul 16, 2022

Alphaamss

an hour ago

Putnam 1979 B5

ZETA_in_olympiad 1

In the plane, let $C$ be a closed convex set that contains $(0,0)$ but no other point with integer coordinates. Suppose that $A(C)$ , the area of $C$ , is equally distributed among the four quadrants. Prove that $A(C) \leq 4.$

1 reply

ZETA_in_olympiad

Apr 8, 2022

Assassino9931

2 hours ago

Compute mixed nash equilibria when items are to be won by bidding

fancyfairy 1

Consider a game being played between two players given five objects. Players have certain preferences over the objects and each simultaneously places a sealed bid-vector to win them. For each object, the highest bidder wins it (ties are broken by giving each player exactly half of the tied object except when both bid $0$ , in which case the object is not distributed).

[list]
[*] Preferences: Suppose player $i$ derives a payoff of $u_{ij} \in \mathbb{R}_{\geq 0}$ when he wins object $j$ . If he wins half of $j$ , then his payoff is $\tfrac{1}{2} u_{ij}$ . The values $u_{ij}$ are given beforehand.
[*]Payoffs: Define $1_{ij}$ as the indicator function that is assigned the value $1$ if player $i$ entirely wins object $j$ , value $0.5$ if player $i$ wins half of $j$ and $0$ otherwise.

Player $i$ 's total payoff after the game concludes is given by $\displaystyle \sum_{j \in M} \left(1_{ij} \cdot u_{ij}\right)$ where $M$ is the set of five objects. That is, the sum of payoffs over all objects won.
[*] Strategies: Each player begins with $\$ 1$ . Player $i$ 's strategy bid-vector is given by $B_i = [b_1, b_2, b_3, b_4, b_5]$ such that $\sum b_j \leq 1$ where $b_j$ denotes the (non-negative) amount he bid for object $j$ .
[/list]
If the preferences $u_{ij}$ s are given beforehand, can we compute the set of all mixed strategy Nash equilibria?

1 reply

fancyfairy

4 hours ago

fancyfairy

4 hours ago

2024 Putnam A1

KevinYang2.71 19

Determine all positive integers $n$ for which there exists positive integers $a$ , $b$ , and $c$ satisfying
$2a^n+3b^n=4c^n.$

19 replies

KevinYang2.71

Dec 10, 2024

maths_enthusiast_0001

5 hours ago

Site Support Tech support and questions about AoPS classes and materials

Tech support and questions about AoPS classes and materials

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Site Support Tech support and questions about AoPS classes and materials

Tech support and questions about AoPS classes and materials

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k a My Retirement & New Leadership at AoPS

rrusczyk 1571

1571 replies

rrusczyk

Mar 24, 2025

SmartGroot

Mar 26, 2025

k a March Highlights and 2025 AoPS Online Class Information

jlacosta 0

0 replies

jlacosta

Mar 2, 2025

0 replies

Introducing myself at AoPS, and what's your magic wand?

asuth_asuth 353

Hi!

I'm Andrew Sutherland. I'm the new Chief Product Officer at AoPS. As you may have read, Richard is retiring and Ben Kornell and I are working together to lead the company now. I'm leading all the software and digital stuff at AoPS. I just wanted to say hello and introduce myself! I'm really excited to be part of the special community that is AoPS.

Previously, I founded Quizlet as a 15-year-old high school student. I did Course 6 at MIT and then left to lead Quizlet full-time for a total of 14 years. I took a few years off and now I'm doing AoPS! I wrote more about all that on my blog: https://asuth.com/im-joining-aops

I have a question for all of you. If you could wave a magic wand, and change anything about AoPS, what would it be? All suggestions welcome! Thank you.

353 replies

+2 w

asuth_asuth

Mar 30, 2025

GAMER100

2 minutes ago

Happy April Fools!

jkim0656 54

Happy April Fools day everyone!
U can post below what tricks u guys are gonna play one each other :)
*grins mischevious grin

54 replies

+3 w

jkim0656

Yesterday at 4:32 AM

LawofCosine

7 minutes ago

k this happened with april fool

Major_Monogram 7

This happened! now it scrolls to the right.

7 replies

Major_Monogram

5 hours ago

MathDolphin95

2 hours ago

k Mathcounts state

orangebear 2

When will the state solutions come out and also does states have a math jam?

2 replies

orangebear

2 hours ago

orangebear

2 hours ago

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National Olympiads
National math olympiads from around the world

Team Selection Tests
IMO Team Selection Tests

Junior Olympiads
Junior olympiads from around the world

2025 Contests
Contests in the 2024-25 school year

2024 Contests
Contests in the 2023-24 school year

2023 Contests
Contests in the 2022-23 school year

2022 Contests
Contests in the 2021-22 school year

AoPS Yearly Contest Collections
2009 - 2025

New Post Collections
New contests and other new collections of posts

Contest Collections Discussion
For sets of contest problems to and requests for the Contest Collections

Other Forums Games, local and regional communities, and user-created forums.

Games, local and regional communities, and user-created forums.

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Other Forums Games, local and regional communities, and user-created forums.

Games, local and regional communities, and user-created forums.

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Games, local and regional communities, and user-created forums.

Peer-to-Peer Programs
Schoolhouse.world, student-prepared handouts, and other peer-to-peer efforts

AoPS Mock Contests
A forum for posting, taking, and discussing contests created by AoPS users

USAMTS
The USA Mathematical Talent Search, a free math competition

ARML
The American Regions Mathematics League, a team math competition

HMMT
The Harvard-MIT Mathematics Tournament, a math meet in MA

Physics
For topics in physics and discussion of physics competitions

Princeton Math Competition
The Princeton Math Competition (PUMaC), a math meet in NJ

Math Prize for Girls
A math contest for girls in 11th grade or below (AMC 10/12 required to apply)

The Round Table
For serious discussions

Purple Comet
A free online math meet for middle and high school students

Computer Science and Informatics
For topics in CS and informatics and discussion of CS competitions

Chemistry
For topics in chemistry and discussion of chemistry competitions

Biology
For topics in biology and discussion of biology competitions

College
College admissions, preparing for college, etc.

Booger Dooger Bow Wow
Overload of games, and fun threads! Anyone can make threads! This forum is made for everyone! (Pronounced: Zar-Keid).

The Game of Life!
A place to play games!

Ask the AoPS Community
General questions addressed to the community - for questions/comments that don't fit elsewhere.

FISHY FISHY LLG CAMP SILLY VANILLY!!!!!!!!!!!
FISHY FISHY FISHY FISHYHere, you can roleplay a character in the setting of Camp Half-Blood! April fools, you actually can’t. Do not role play here, it’s illegal unless you’re an admin. #adminabuse

Old High School Olympiads
Regional, National, and International Math Olympiads before 2001 mostly, recent years have been posted in order to make contest collections richer

April flames!
Where you can hang with others, play games, advertise, and more!

Boredom Buster‎!
Isn't it obvious? We bust your boredom!

Demigod's Corner
This is a PJO fan forum. We have: A quest system, a storyline, RPGs, games, discussions, and you can RP as whoever youwant! A satyr, vampire, demigod, wheoever!

Swim Hub
For Swimmers Out There

The Fox Forum
Forum about foxes!

CMIMC
Forum for the Carnegie Mellon Informatics and Mathematics Competition, a math/CS contest held in Pittsburgh.

Old Russian Math Olympiads
All Russian, Moscow, Tournament of Towns,...

The Mango Cult
A fun interactive forum with games, shops, chats, and more!

Harker Math Invitational
The official AoPS forum for the Diana Nichols Harker Math Invitational

The Dog Lovers Forum!
Hi! Ever had a dog, wanted one, or wanted to experience the life of a puppy? You came to the right place! Here, you can express your love for dogs...FREELY! We have games, RPGs, and talks from expert dog owners who have lots of experience!

The Clan Gathering
Live an adventurous wild cat life in The Clan Gathering!

The Hub!!!
Welcome to The Hub, your all-in-one community hub! We have games, an advertisement thread, and much more. Come join us!

Kids just wanna have fun
We mostly RP, but there are a lot of other fun games.

Doggy Forum
Come play doggy games :)

The Cat Lovers Forum!
A forum for all cat lovers!

THE ALTERNATE BLAME MORON
Play games and have fun!

。:+* K-POP WORLD *+:。
If you love K-Pop, come and join this fun forum! Create your own group, and idol!

The Incredible Forum
Welcome to the game forum!

The Cooking & Baking Forum
Like cooking and/or baking? This forum is the right place for you! Join us for a tasty treat!

Cobble's Wolf Pack
This is Cobble918's RPG game. Live a life of a wild wolf!

India
For users from India and discussions related to India

FTW/Reaper/GC General Discussion
Use this forum for general discussion, tournament creation, etc.

Team Noodles and Fantastic Beasts forum!
Gaming, Harry Potter role-play, and discussion forum! Join the NOODLE community today!

Epic fun forum
Epic games and fun here join today!

The Lost Cities!
Keeper of The Lost Cities roleplay and games!

A Galaxy Far Far away
Epic games and RPG from the Star Wars galaxy

Special Collections Collections of forums, tags, topics, and posts from the AoPS community.

Collections of forums, tags, topics, and posts from the AoPS community.

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Special Collections Collections of forums, tags, topics, and posts from the AoPS community.

Collections of forums, tags, topics, and posts from the AoPS community.

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Collections of forums, tags, topics, and posts from the AoPS community.

Games Forums
FTW, Mafia, video games, etc.

Sciences
Chemistry, physics, biology, and other sciences.

AoPS Olympiad & College Portal
Customized for Olympiad & College students

Other Interests
Current events, music, arts, etc.

Contest Forums
Forums for specific contests

Summer Program Forums
Forums for specific summer programs

Olympiad Classic View
High School Olympiads in the old AoPS style

College Classic View
College Math in the old AoPS style

Communities Around the World
Local and National Communities around the World

New Forums
Public forums created in the last month

Other Collections
User-created collections.

New Collections
New user-created collections.

After High School
Discussions about college and careers

Publications
Forums for specific books and journals

Statistics:

Total posts: 24,687,869 | Total topics: 1,888,171 | Total members: 1,168,806