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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
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USAJMO Score Spreadsheet!
hellohannah   1
N a minute ago by S.Das93
Hi!

I created a spreadsheet for JMO scores https://docs.google.com/spreadsheets/d/1GnCi5OIJVg0SGh67qDcO3znLINJarUebjXQ7TRaJkWk/edit?gid=0#gid=0

Message me to add your score
1 reply
hellohannah
3 minutes ago
S.Das93
a minute ago
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high tech FE as J1?!
imagien_bad   56
N 3 minutes ago by eg4334
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 $g(a) = b$.
56 replies
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imagien_bad
Yesterday at 12:00 PM
eg4334
3 minutes ago
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0 on jmo
Rong0625   8
N 3 minutes ago by xTimmyG
How many people actually get a flat 0/42 on jmo? I took it for the first time this year and I had never done oly math before so I really only had 2 weeks to figure it out since I didn’t think I would qual. I went in not expecting much but I didn’t think I wouldn’t be able to get ANYTHING. So I’m pretty sure I got 0/42 (unless i get pity points for writing incorrect solutions). Is that bad, am I sped, and should I be embarrassed? Or do other people actually also get 0?
8 replies
+2 w
Rong0625
Today at 12:14 PM
xTimmyG
3 minutes ago
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2025 USA(J)MO Cutoff Predictions
KevinChen_Yay   80
N 4 minutes ago by bjump
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?)
80 replies
+3 w
KevinChen_Yay
Today at 12:33 PM
bjump
4 minutes ago
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ABMC 2025 IN-PERSON Contest (April 5th)
ilovepizza2020   7
N Mar 19, 2025 by MagicPotato
The 9th annual Acton-Boxborough Math Competition (ABMC) is quickly approaching! This year's ABMC will be held in-person at RJ Grey Junior High School, Acton, MA, on April 5th, 2025. The competition includes individual rounds and a team round, in which teams of 2-4 students participate. Anyone in grade 8 or below is welcome! You must register to compete. For more information about registration and the tentative schedule, please consult our website: https://abmathcompetitions.org/2025-contest/.

We offer prizes not only to top competitors; several of our sponsor prizes and educational awards are raffled among all in-person participants. Additionally, there are separate prizes for the top-scoring elementary schoolers.


For more information, visit https://abmathcompetitions.org/, especially the 2025 Competition page.
For the mailing list, visit https://abmathcompetitions.org/contact/.

Best,
ABMC Coordinators
7 replies
ilovepizza2020
Mar 16, 2025
MagicPotato
Mar 19, 2025
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ABMC 2025 IN-PERSON Contest (April 5th)
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ABMC
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ilovepizza2020
12156 posts
ilovepizza2020
#1 h  Mar 16, 2025, 11:32 PM • 14 Y
Y by b20081, moony_eyed, cai40, jjxu2020, Eric1219, avgowrish, mynameisjefff, vrondoS, christinaa.luu, Errorr_er, Awesomeness_in_a_bun, lpieleanu, MagicPotato, mathfan2020
The 9th annual Acton-Boxborough Math Competition (ABMC) is quickly approaching! This year's ABMC will be held in-person at RJ Grey Junior High School, Acton, MA, on April 5th, 2025. The competition includes individual rounds and a team round, in which teams of 2-4 students participate. Anyone in grade 8 or below is welcome! You must register to compete. For more information about registration and the tentative schedule, please consult our website: https://abmathcompetitions.org/2025-contest/.

We offer prizes not only to top competitors; several of our sponsor prizes and educational awards are raffled among all in-person participants. Additionally, there are separate prizes for the top-scoring elementary schoolers.


For more information, visit https://abmathcompetitions.org/, especially the 2025 Competition page.
For the mailing list, visit https://abmathcompetitions.org/contact/.

Best,
ABMC Coordinators
Attachments:
ABMC Onsite Flier 2025.pdf (160kb)
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cai40
1158 posts
cai40
#2 h  Mar 16, 2025, 11:36 PM • 1 Y
Y by jjxu2020
gonna be an EPIC contest
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tangent2001
61 posts
tangent2001
#3 h  Mar 16, 2025, 11:38 PM
Y by
i love the pizza there
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Bnn81351
43 posts
Bnn81351
#4 h  Mar 16, 2025, 11:46 PM
Y by
Is it only for people in MA
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mynameisjefff
1 post
mynameisjefff
#5 h  Mar 16, 2025, 11:59 PM
Y by
Anyone thats coming can look forward to science quiz bowl during lunch time.
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mathisconfusing
28 posts
mathisconfusing
#6 h  Mar 17, 2025, 5:45 PM
Y by
Bnn81351 wrote:
Is it only for people in MA

anyone can go (you don't have to be from MA)

I went last year and it was a lot of fun
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X423anp1
284 posts
X423anp1
#7 h  Mar 19, 2025, 12:40 AM
Y by
abmc is so cool!!! :-D
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MagicPotato
59 posts
MagicPotato
#8 h  Mar 19, 2025, 12:50 AM
Y by
I did this back in 7th grade. Extremely fun and insightful experience
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