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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 March Highlights and 2025 AoPS Online Class Information
jlacosta   0
Mar 2, 2025
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
k i Peer-to-Peer Programs Forum
jwelsh   157
N Dec 11, 2023 by cw357
Many of our AoPS Community members share their knowledge with their peers in a variety of ways, ranging from creating mock contests to creating real contests to writing handouts to hosting sessions as part of our partnership with schoolhouse.world.

To facilitate students in these efforts, we have created a new Peer-to-Peer Programs forum. With the creation of this forum, we are starting a new process for those of you who want to advertise your efforts. These advertisements and ensuing discussions have been cluttering up some of the forums that were meant for other purposes, so we’re gathering these topics in one place. This also allows students to find new peer-to-peer learning opportunities without having to poke around all the other forums.

To announce your program, or to invite others to work with you on it, here’s what to do:

1) Post a new topic in the Peer-to-Peer Programs forum. This will be the discussion thread for your program.

2) Post a single brief post in this thread that links the discussion thread of your program in the Peer-to-Peer Programs forum.

Please note that we’ll move or delete any future advertisement posts that are outside the Peer-to-Peer Programs forum, as well as any posts in this topic that are not brief announcements of new opportunities. In particular, this topic should not be used to discuss specific programs; those discussions should occur in topics in the Peer-to-Peer Programs forum.

Your post in this thread should have what you're sharing (class, session, tutoring, handout, math or coding game/other program) and a link to the thread in the Peer-to-Peer Programs forum, which should have more information (like where to find what you're sharing).
157 replies
jwelsh
Mar 15, 2021
cw357
Dec 11, 2023
k i C&P posting recs by mods
v_Enhance   0
Jun 12, 2020
The purpose of this post is to lay out a few suggestions about what kind of posts work well for the C&P forum. Except in a few cases these are mostly meant to be "suggestions based on historical trends" rather than firm hard rules; we may eventually replace this with an actual list of firm rules but that requires admin approval :) That said, if you post something in the "discouraged" category, you should not be totally surprised if it gets locked; they are discouraged exactly because past experience shows they tend to go badly.
-----------------------------
1. Program discussion: Allowed
If you have questions about specific camps or programs (e.g. which classes are good at X camp?), these questions fit well here. Many camps/programs have specific sub-forums too but we understand a lot of them are not active.
-----------------------------
2. Results discussion: Allowed
You can make threads about e.g. how you did on contests (including AMC), though on AMC day when there is a lot of discussion. Moderators and administrators may do a lot of thread-merging / forum-wrangling to keep things in one place.
-----------------------------
3. Reposting solutions or questions to past AMC/AIME/USAMO problems: Allowed
This forum contains a post for nearly every problem from AMC8, AMC10, AMC12, AIME, USAJMO, USAMO (and these links give you an index of all these posts). It is always permitted to post a full solution to any problem in its own thread (linked above), regardless of how old the problem is, and even if this solution is similar to one that has already been posted. We encourage this type of posting because it is helpful for the user to explain their solution in full to an audience, and for future users who want to see multiple approaches to a problem or even just the frequency distribution of common approaches. We do ask for some explanation; if you just post "the answer is (B); ez" then you are not adding anything useful.

You are also encouraged to post questions about a specific problem in the specific thread for that problem, or about previous user's solutions. It's almost always better to use the existing thread than to start a new one, to keep all the discussion in one place easily searchable for future visitors.
-----------------------------
4. Advice posts: Allowed, but read below first
You can use this forum to ask for advice about how to prepare for math competitions in general. But you should be aware that this question has been asked many many times. Before making a post, you are encouraged to look at the following:
[list]
[*] Stop looking for the right training: A generic post about advice that keeps getting stickied :)
[*] There is an enormous list of links on the Wiki of books / problems / etc for all levels.
[/list]
When you do post, we really encourage you to be as specific as possible in your question. Tell us about your background, what you've tried already, etc.

Actually, the absolute best way to get a helpful response is to take a few examples of problems that you tried to solve but couldn't, and explain what you tried on them / why you couldn't solve them. Here is a great example of a specific question.
-----------------------------
5. Publicity: use P2P forum instead
See https://artofproblemsolving.com/community/c5h2489297_peertopeer_programs_forum.
Some exceptions have been allowed in the past, but these require approval from administrators. (I am not totally sure what the criteria is. I am not an administrator.)
-----------------------------
6. Mock contests: use Mock Contests forum instead
Mock contests should be posted in the dedicated forum instead:
https://artofproblemsolving.com/community/c594864_aops_mock_contests
-----------------------------
7. AMC procedural questions: suggest to contact the AMC HQ instead
If you have a question like "how do I submit a change of venue form for the AIME" or "why is my name not on the qualifiers list even though I have a 300 index", you would be better off calling or emailing the AMC program to ask, they are the ones who can help you :)
-----------------------------
8. Discussion of random math problems: suggest to use MSM/HSM/HSO instead
If you are discussing a specific math problem that isn't from the AMC/AIME/USAMO, it's better to post these in Middle School Math, High School Math, High School Olympiads instead.
-----------------------------
9. Politics: suggest to use Round Table instead
There are important conversations to be had about things like gender diversity in math contests, etc., for sure. However, from experience we think that C&P is historically not a good place to have these conversations, as they go off the rails very quickly. We encourage you to use the Round Table instead, where it is much more clear that all posts need to be serious.
-----------------------------
10. MAA complaints: discouraged
We don't want to pretend that the MAA is perfect or that we agree with everything they do. However, we chose to discourage this sort of behavior because in practice most of the comments we see are not useful and some are frankly offensive.
[list] [*] If you just want to blow off steam, do it on your blog instead.
[*] When you have criticism, it should be reasoned, well-thought and constructive. What we mean by this is, for example, when the AOIME was announced, there was great outrage about potential cheating. Well, do you really think that this is something the organizers didn't think about too? Simply posting that "people will cheat and steal my USAMOO qualification, the MAA are idiots!" is not helpful as it is not bringing any new information to the table.
[*] Even if you do have reasoned, well-thought, constructive criticism, we think it is actually better to email it the MAA instead, rather than post it here. Experience shows that even polite, well-meaning suggestions posted in C&P are often derailed by less mature users who insist on complaining about everything.
[/list]
-----------------------------
11. Memes and joke posts: discouraged
It's fine to make jokes or lighthearted posts every so often. But it should be done with discretion. Ideally, jokes should be done within a longer post that has other content. For example, in my response to one user's question about olympiad combinatorics, I used a silly picture of Sogiita Gunha, but it was done within a context of a much longer post where it was meant to actually make a point.

On the other hand, there are many threads which consist largely of posts whose only content is an attached meme with the word "MAA" in it. When done in excess like this, the jokes reflect poorly on the community, so we explicitly discourage them.
-----------------------------
12. Questions that no one can answer: discouraged
Examples of this: "will MIT ask for AOIME scores?", "what will the AIME 2021 cutoffs be (asked in 2020)", etc. Basically, if you ask a question on this forum, it's better if the question is something that a user can plausibly answer :)
-----------------------------
13. Blind speculation: discouraged
Along these lines, if you do see a question that you don't have an answer to, we discourage "blindly guessing" as it leads to spreading of baseless rumors. For example, if you see some user posting "why are there fewer qualifiers than usual this year?", you should not reply "the MAA must have been worried about online cheating so they took fewer people!!". Was sich überhaupt sagen lässt, lässt sich klar sagen; und wovon man nicht reden kann, darüber muss man schweigen.
-----------------------------
14. Discussion of cheating: strongly discouraged
If you have evidence or reasonable suspicion of cheating, please report this to your Competition Manager or to the AMC HQ; these forums cannot help you.
Otherwise, please avoid public discussion of cheating. That is: no discussion of methods of cheating, no speculation about how cheating affects cutoffs, and so on --- it is not helpful to anyone, and it creates a sour atmosphere. A longer explanation is given in Seriously, please stop discussing how to cheat.
-----------------------------
15. Cutoff jokes: never allowed
Whenever the cutoffs for any major contest are released, it is very obvious when they are official. In the past, this has been achieved by the numbers being posted on the official AMC website (here) or through a post from the AMCDirector account.

You must never post fake cutoffs, even as a joke. You should also refrain from posting cutoffs that you've heard of via email, etc., because it is better to wait for the obvious official announcement. A longer explanation is given in A Treatise on Cutoff Trolling.
-----------------------------
16. Meanness: never allowed
Being mean is worse than being immature and unproductive. If another user does something which you think is inappropriate, use the Report button to bring the post to moderator attention, or if you really must reply, do so in a way that is tactful and constructive rather than inflammatory.
-----------------------------

Finally, we remind you all to sit back and enjoy the problems. :D

-----------------------------
(EDIT 2024-09-13: AoPS has asked to me to add the following item.)

Advertising paid program or service: never allowed

Per the AoPS Terms of Service (rule 5h), general advertisements are not allowed.

While we do allow advertisements of official contests (at the MAA and MATHCOUNTS level) and those run by college students with at least one successful year, any and all advertisements of a paid service or program is not allowed and will be deleted.
0 replies
v_Enhance
Jun 12, 2020
0 replies
k i Stop looking for the "right" training
v_Enhance   50
N Oct 16, 2017 by blawho12
Source: Contest advice
EDIT 2019-02-01: https://blog.evanchen.cc/2019/01/31/math-contest-platitudes-v3/ is the updated version of this.

EDIT 2021-06-09: see also https://web.evanchen.cc/faq-contest.html.

Original 2013 post
50 replies
v_Enhance
Feb 15, 2013
blawho12
Oct 16, 2017
usamOOK geometry
KevinYang2.71   72
N 7 minutes ago by ehuseyinyigit
Source: USAMO 2025/4, USAJMO 2025/5
Let $H$ be the orthocenter of acute triangle $ABC$, let $F$ be the foot of the altitude from $C$ to $AB$, and let $P$ be the reflection of $H$ across $BC$. Suppose that the circumcircle of triangle $AFP$ intersects line $BC$ at two distinct points $X$ and $Y$. Prove that $C$ is the midpoint of $XY$.
72 replies
KevinYang2.71
Yesterday at 12:00 PM
ehuseyinyigit
7 minutes ago
2025 USA(J)MO Cutoff Predictions
KevinChen_Yay   98
N 10 minutes ago by imagien_bad
What do y'all think JMO winner and MOP cuts will be?

(Also, to satisfy the USAMO takers; what about the bronze, silver, gold, green mop, blue mop, black mop?)
98 replies
+1 w
KevinChen_Yay
Yesterday at 12:33 PM
imagien_bad
10 minutes ago
TOTAL PATHS
deetimodi   7
N 31 minutes ago by aidan0626
Can anyone pls tell me how to do this problem?
7 replies
2 viewing
deetimodi
2 hours ago
aidan0626
31 minutes ago
[CONCLUDED] VENAMC 10+2
ethan2011   126
N 38 minutes ago by Math-lover1
Well, AMC's are in 4 months. Would you like to prepare with a mock test written and tested by JMO and Mathcounts National Countdown Round Qualifiers? Well, take the VENAMC 10+2!
If you're wondering, VENAMC 10+2: Very Exciting New American Mathematics Competition written by the VEN comittee: Problem Writers and Test Solvers/Testers(you may see them on the leaderboard). We had the 10+2 because while the difficulty is probably harder than AMC 12, there is no precalculus.
Leaderboard(52)
Errata
The test has been released! You can still sign up if you want. If you would like to take it, please sign up: Signups(0)
To submit your answers, send a PM to ethan2011 with
1. Your answers
2. If you would like to stay anonymous on leaderboard, or if you'd like your name to be shown
3. On a scale of 1 to 10, how difficult the test was(1 being easiest and 10 being hardest)
4. On a scale of 1 to 10, how high quality the test was(1 being terrible and 10 being great)
5. If you would recommend this to a friend(if you would, then please do!)
6. What your favorite problem was
7. What your least favorite problem was
8. Guess which problem Vincent wrote(if you do, you may get extra credit, but I doubt anyone will).
People who have guessed correctly which problem Vincent wrote
The test is below.
The private discussion forum has been created! It will only be given access to those that have submitted the test, or those who do not have the time to discuss the test and want to discuss some problems(if you are of the second type, then you must ask me for permission of course). You can discuss the problems there. The link to it is here: VENAMC Discussion Forum
Projected Cutoffs
The contest has concluded! You can still submit, and I may respond to it, but you just won't be shown on the leaderboard. If you want access to the private discussion forum, please PM me.
126 replies
ethan2011
Jul 10, 2024
Math-lover1
38 minutes ago
Scary Binomial Coefficient Sum
EpicBird08   33
N an hour ago by awesomeming327.
Source: USAMO 2025/5
Determine, with proof, all positive integers $k$ such that $$\frac{1}{n+1} \sum_{i=0}^n \binom{n}{i}^k$$is an integer for every positive integer $n.$
33 replies
EpicBird08
Yesterday at 11:59 AM
awesomeming327.
an hour ago
Red Mop Chances
imagien_bad   0
2 hours ago
What are my chances of making red mop with a 35 on jmo?
0 replies
imagien_bad
2 hours ago
0 replies
Day Before Tips
elasticwealth   75
N 3 hours ago by hashbrown2009
Hi Everyone,

USA(J)MO is tomorrow. I am a Junior, so this is my last chance. I made USAMO by ZERO points but I've actually been studying oly seriously since JMO last year. I am more stressed than I was before AMC/AIME because I feel Olympiad is more unpredictable and harder to prepare for. I am fairly confident in my ability to solve 1/4 but whether I can solve the rest really leans on the topic distribution.

Anyway, I'm just super stressed and not sure what to do. All tips are welcome!

Thanks everyone! Good luck tomorrow!
75 replies
elasticwealth
Mar 19, 2025
hashbrown2009
3 hours ago
BOMBARDIRO CROCODILO VS TRALALERO TRALALA
LostDreams   53
N 3 hours ago by hashbrown2009
Source: USAJMO 2025/4
Let $n$ be a positive integer, and let $a_0,\,a_1,\dots,\,a_n$ be nonnegative integers such that $a_0\ge a_1\ge \dots\ge a_n.$ Prove that
\[
\sum_{i=0}^n i\binom{a_i}{2}\le\frac{1}{2}\binom{a_0+a_1+\dots+a_n}{2}.
\]Note: $\binom{k}{2}=\frac{k(k-1)}{2}$ for all nonnegative integers $k$.
53 replies
LostDreams
Yesterday at 12:11 PM
hashbrown2009
3 hours ago
MATHCOUNTS halp
AndrewZhong2012   18
N 3 hours ago by MathematicGenius
I know this post has been made before, but I personally can't find it. I qualified for mathcounts through wildcard in PA, and I can't figure out how to do those last handful of states sprint problems that seem to be one trick ponies(2024 P28 and P29 are examples) They seem very prevalent recently. Does anyone have advice on how to figure out problems like these in the moment?
18 replies
AndrewZhong2012
Mar 5, 2025
MathematicGenius
3 hours ago
F-ma exam and math
MathNerdRabbit103   5
N 3 hours ago by MathNerdRabbit103
Hi guys,
Do I need to know calculus to take the F-ma exam? I am only on the intro to algebra book. Also, I want to do good on the USAPHO exam. So can I skip the waves section of HRK?
Thanks
5 replies
MathNerdRabbit103
Yesterday at 10:05 PM
MathNerdRabbit103
3 hours ago
Tennessee Math Tournament (TMT) Online 2025
TennesseeMathTournament   37
N 4 hours ago by athreyay
Hello everyone! We are excited to announce a new competition, the Tennessee Math Tournament, created by the Tennessee Math Coalition! Anyone can participate in the virtual competition for free.

The testing window is from March 22nd to April 5th, 2025. Virtual competitors may participate in the competition at any time during that window.

The virtual competition consists of three rounds: Individual, Bullet, and Team. The Individual Round is 60 minutes long and consists of 30 questions (AMC 10 level). The Bullet Round is 20 minutes long and consists of 80 questions (Mathcounts Chapter level). The Team Round is 30 minutes long and consists of 16 questions (AMC 12 level). Virtual competitors may compete in teams of four, or choose to not participate in the team round.

To register and see more information, click here!

If you have any questions, please email connect@tnmathcoalition.org or reply to this thread!

Thank you to our lead sponsor, Jane Street!

IMAGE
37 replies
TennesseeMathTournament
Mar 9, 2025
athreyay
4 hours ago
high tech FE as J1?!
imagien_bad   57
N 4 hours ago by williamxiao
Source: USAJMO 2025/1
Let $\mathbb Z$ be the set of integers, and let $f\colon \mathbb Z \to \mathbb Z$ be a function. Prove that there are infinitely many integers $c$ such that the function $g\colon \mathbb Z \to \mathbb Z$ defined by $g(x) = f(x) + cx$ is not bijective.
Note: A function $g\colon \mathbb Z \to \mathbb Z$ is bijective if for every integer $b$, there exists exactly one integer $a$ such that $g(a) = b$.
57 replies
imagien_bad
Mar 20, 2025
williamxiao
4 hours ago
lil trip to ancient egypt
ChuMath   11
N 4 hours ago by Craftybutterfly
Source: 2025 AMC 8 Problem #2
The table below shows the ancient Egyptian hieroglyphs that were used to represent different numbers.

(need asymptote)

For example, the number 32 was represented by (need again). What number was represented by the following combination of hieroglyphs?

(and once again)

$\textbf{(A) } 1,423\qquad\textbf{(B) } 10,423\qquad\textbf{(C) } 14,023\qquad\textbf{(D) } 14,203\qquad\textbf{(E) } 14,230$

my bad @sillysharky
11 replies
ChuMath
Jan 30, 2025
Craftybutterfly
4 hours ago
USAJMO #5 - points on a circle
hrithikguy   205
N 5 hours ago by cappucher
Points $A,B,C,D,E$ lie on a circle $\omega$ and point $P$ lies outside the circle. The given points are such that (i) lines $PB$ and $PD$ are tangent to $\omega$, (ii) $P, A, C$ are collinear, and (iii) $DE \parallel AC$. Prove that $BE$ bisects $AC$.
205 replies
hrithikguy
Apr 28, 2011
cappucher
5 hours ago
AMO vs JMO
eevee9406   5
N Thursday at 11:20 PM by elasticwealth
Hi everyone,

I want to try to make MOP. Is it more worth it to take JMO 9th/10th gr or AMO 9th-11th gr? Thanks, and gl today!
5 replies
eevee9406
Mar 20, 2025
elasticwealth
Thursday at 11:20 PM
AMO vs JMO
G H J
G H BBookmark kLocked kLocked NReply
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eevee9406
1 post
#1
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Hi everyone,

I want to try to make MOP. Is it more worth it to take JMO 9th/10th gr or AMO 9th-11th gr? Thanks, and gl today!
Z K Y
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awesomeguy856
7263 posts
#2
Y by
JMO $     $
Z K Y
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elasticwealth
307 posts
#4
Y by
AMO > JMO since amo HM + pocket change usually makes mop
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orangebear
611 posts
#5
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I'm pretty sure you only can qualify for MOP through USAMO
edit: nvm but USAMO is more worth it if you want to qualify for MOP.
This post has been edited 2 times. Last edited by orangebear, Thursday at 11:21 PM
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scannose
984 posts
#6
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orangebear wrote:
I'm pretty sure you only can qualify for MOP through USAMO

this isn't true
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elasticwealth
307 posts
#7
Y by
orangebear wrote:
I'm pretty sure you only can qualify for MOP through USAMO

no?
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