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a My Retirement & New Leadership at AoPS
rrusczyk   1342
N 7 minutes ago by deepanathanv
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
1342 replies
+1 w
rrusczyk
Monday at 6:37 PM
deepanathanv
7 minutes ago
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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]
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0 replies
jlacosta
Mar 2, 2025
0 replies
J
H
usamOOK geometry
KevinYang2.71   86
N a few seconds ago by deduck
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 $XY$.
86 replies
KevinYang2.71
Mar 21, 2025
deduck
a few seconds ago
J
H
Scary Binomial Coefficient Sum
EpicBird08   38
N 6 minutes ago by Mathandski
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 $n.$
38 replies
+2 w
EpicBird08
Mar 21, 2025
Mathandski
6 minutes ago
J
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Good AIME/Olympiad Level Number Theory Books
MathRook7817   2
N 29 minutes ago by MathRook7817
Hey guys, do you guys have any good AIME/USAJMO Level Number Theory book suggestions?
I'm trying to get 10+ on next year's AIME and hopefully qual for USAJMO.
2 replies
MathRook7817
an hour ago
MathRook7817
29 minutes ago
J
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[TEST RELEASED] Mock Geometry Test for College Competitions
Bluesoul   22
N an hour ago by QuestionSourcer
Hi AOPSers,

I have finished writing a mock geometry test for fun and practice for the real college competitions like HMMT/PUMaC/CMIMC... There would be 10 questions and you should finish the test in 60 minutes, the test would be close to the actual test (hopefully). You could sign up under this thread, PM me your answers!. The submission would close on March 31st at 11:59PM PST.

I would create a private discussion forum so everyone could discuss after finishing the test. This is the first mock I've written, please sign up and enjoy geometry!!

~Bluesoul

Discussion forum: Discussion forum

Leaderboard
22 replies
Bluesoul
Feb 24, 2025
QuestionSourcer
an hour ago
J
No more topics!
H
J
H
[TEST RELEASED] Mock Geometry Test for College Competitions
Bluesoul   22
N an hour ago by QuestionSourcer
Hi AOPSers,

I have finished writing a mock geometry test for fun and practice for the real college competitions like HMMT/PUMaC/CMIMC... There would be 10 questions and you should finish the test in 60 minutes, the test would be close to the actual test (hopefully). You could sign up under this thread, PM me your answers!. The submission would close on March 31st at 11:59PM PST.

I would create a private discussion forum so everyone could discuss after finishing the test. This is the first mock I've written, please sign up and enjoy geometry!!

~Bluesoul

Discussion forum: Discussion forum

Leaderboard
22 replies
Bluesoul
Feb 24, 2025
QuestionSourcer
an hour ago
J
[TEST RELEASED] Mock Geometry Test for College Competitions
G H J
Reveal topic tags
geometry
college competitions
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Bluesoul
874 posts
Bluesoul
#1 h  Feb 24, 2025, 9:42 AM • 6 Y
Y by Pengu14, NaturalSelection, jocaleby1, mynameisjefff, megahertz13, ehuseyinyigit
Hi AOPSers,

I have finished writing a mock geometry test for fun and practice for the real college competitions like HMMT/PUMaC/CMIMC... There would be 10 questions and you should finish the test in 60 minutes, the test would be close to the actual test (hopefully). You could sign up under this thread, PM me your answers!. The submission would close on March 31st at 11:59PM PST.

I would create a private discussion forum so everyone could discuss after finishing the test. This is the first mock I've written, please sign up and enjoy geometry!!

~Bluesoul

Discussion forum: Discussion forum

Leaderboard
Attachments:
Mock_Geometry Test Final.pdf (91kb)
This post has been edited 12 times. Last edited by Bluesoul, an hour ago
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idk12345678
333 posts
idk12345678
#2 h  Feb 24, 2025, 3:09 PM
Y by
/signup idk12345678
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fake123
40 posts
fake123
#3 h  Feb 24, 2025, 5:27 PM
Y by
/signup xooooook
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Bluesoul
874 posts
Bluesoul
#4 h  Feb 24, 2025, 7:35 PM • 3 Y
Y by fake123, Pengu14, megahertz13
I just changed my mind and the test is released! The test duration would be over than one month and if you don't feel like to PM me your answer, here is the submission form: google form .

Enjoy problem solving!
Attachments:
Mock_Geometry Test Final.pdf (91kb)
This post has been edited 1 time. Last edited by Bluesoul, Feb 24, 2025, 11:43 PM
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Bluesoul
874 posts
Bluesoul
#5 h  Feb 24, 2025, 11:43 PM
Y by
I just realized I messed up some letters in question 3, I have revised the problems and attached the correct version. Sorry!
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Iwowowl253
119 posts
Iwowowl253
#6 h  Feb 24, 2025, 11:49 PM
Y by
/signup!
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sadas123
1086 posts
sadas123
#7 h  Feb 25, 2025, 1:56 AM
Y by
/SIGNUP please It look really good!
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MathCosine
123 posts
MathCosine
#8 h  Feb 25, 2025, 4:10 AM
Y by
/signup funny
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Bluesoul
874 posts
Bluesoul
#9 h  Feb 25, 2025, 4:46 AM
Y by
MathCosine wrote:
/signup funny

lol maybe if there are enough contestants
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MathCosine
123 posts
MathCosine
#10 h  Mar 1, 2025, 12:08 AM
Y by
can the answer choices be radicals? and how do we enter them if so?
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sadas123
1086 posts
sadas123
#11 h  Mar 1, 2025, 12:41 AM
Y by
MathCosine wrote:
can the answer choices be radicals? and how do we enter them if so?

I didn't get any radicals but there might be but I think that I sold because Geo is my weakest part of math comp.
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Bluesoul
874 posts
Bluesoul
#12 h  Mar 1, 2025, 7:51 AM
Y by
MathCosine wrote:
can the answer choices be radicals? and how do we enter them if so?

yes! You could just type sqrt(sth) or rt(sth)

I didn’t use the summation form since I saw hmmt starts to leave the answers in their actual form instead of adding the elements of the expression lol
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Bluesoul
874 posts
Bluesoul
#13 h  Mar 18, 2025, 5:20 AM
Y by
lil bump for this, the submission is ending in about 10 days!
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k1glaucus
630 posts
k1glaucus
#14 h  Mar 18, 2025, 12:46 PM
Y by
/signup.
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megahertz13
3177 posts
megahertz13
#15 h  Mar 22, 2025, 1:14 AM
Y by
sadas123 wrote:
MathCosine wrote:
can the answer choices be radicals? and how do we enter them if so?

I didn't get any radicals but there might be but I think that I sold because Geo is my weakest part of math comp.

algebra mains ftw
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megahertz13
3177 posts
megahertz13
#16 h  Mar 22, 2025, 1:18 AM
Y by
Bluesoul wrote:
lil bump for this, the submission is ending in about 10 days!

/signup
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lord_of_the_rook
125 posts
lord_of_the_rook
#17 h  Mar 22, 2025, 4:27 AM
Y by
/signup about to fail
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sdfgfjh
72 posts
sdfgfjh
#18 h  Mar 23, 2025, 3:13 PM
Y by
/signup sdfgfjh
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franklin2013
191 posts
franklin2013
#19 h  Mar 23, 2025, 3:16 PM
Y by
/signup, Imma fail!
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Bluesoul
874 posts
Bluesoul
#20 h  Mar 23, 2025, 9:35 PM
Y by
guys don't send an answer sheet with name "you lost the game" and answers 1434 for all 10
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sadas123
1086 posts
sadas123
#21 h  Mar 24, 2025, 12:07 AM
Y by
Bluesoul wrote:
guys don't send an answer sheet with name "you lost the game" and answers 1434 for all 10

I just realized that my email ends with 1433 :skull I told my parents I was 1 off from losing the game but they didn't understand :rotfl:
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Bluesoul
874 posts
Bluesoul
#22 h  Mar 24, 2025, 12:32 AM
Y by
Discussion forum has been made, if you submitted but didn't see the invitation lmk
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QuestionSourcer
1 post
QuestionSourcer
#23 h  an hour ago
Y by
/signup Bashing ftw
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