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Contests & Programs AMC and other contests, summer programs, etc.
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k a April Highlights and 2025 AoPS Online Class Information
jlacosta   0
Apr 2, 2025
Spring is in full swing and summer is right around the corner, what are your plans? At AoPS Online our schedule has new classes starting now through July, so be sure to keep your skills sharp and be prepared for the Fall school year! Check out the schedule of upcoming classes below.

WOOT early bird pricing is in effect, don’t miss out! If you took MathWOOT Level 2 last year, no worries, it is all new problems this year! Our Worldwide Online Olympiad Training program is for high school level competitors. AoPS designed these courses to help our top students get the deep focus they need to succeed in their specific competition goals. Check out the details at this link for all our WOOT programs in math, computer science, chemistry, and physics.

Looking for summer camps in math and language arts? Be sure to check out the video-based summer camps offered at the Virtual Campus that are 2- to 4-weeks in duration. There are middle and high school competition math camps as well as Math Beasts camps that review key topics coupled with fun explorations covering areas such as graph theory (Math Beasts Camp 6), cryptography (Math Beasts Camp 7-8), and topology (Math Beasts Camp 8-9)!

Be sure to mark your calendars for the following events:
[list][*]April 3rd (Webinar), 4pm PT/7:00pm ET, Learning with AoPS: Perspectives from a Parent, Math Camp Instructor, and University Professor
[*]April 8th (Math Jam), 4:30pm PT/7:30pm ET, 2025 MATHCOUNTS State Discussion
April 9th (Webinar), 4:00pm PT/7:00pm ET, Learn about Video-based Summer Camps at the Virtual Campus
[*]April 10th (Math Jam), 4:30pm PT/7:30pm ET, 2025 MathILy and MathILy-Er Math Jam: Multibackwards Numbers
[*]April 22nd (Webinar), 4:00pm PT/7:00pm ET, Competitive Programming at AoPS (USACO).[/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
Apr 2, 2025
0 replies
Westford Academy to host Middle School Math Competition
cyou   6
N 44 minutes ago by eibc
Hi AOPS community,

We are excited to announce that Westford Academy (located in Westford, MA) will be hosting its first ever math competition for middle school students (grades 5-8).

Based in Massachusetts, this tournament hosts ambitious and mathematically skilled students in grades 5–8 to compete against other middle school math teams while fostering their problem-solving skills and preparing them to continue enriching their STEM skills in high school and in the future.

This competition will be held on April 12, 2025 from 12:00 PM to 5:00 PM and will feature 3 rounds (team, speed, and accuracy). The problems will be of similar difficulty for AMC 8-10 and were written by USA(J)MO and AIME qualifiers.

If you are in the Massachusetts area and are curious about Mathematics, we cordially invite you to sign up by scanning the QR code on the attached flyer. Please note that teams consist of 4-6 competitors, but if you prefer to register as an individual competitor, you will be randomly placed on a team of other individual competitors. Feel free to refer the attached flyer and website as needed.


https://sites.google.com/westfordk12.us/wamt/home?authuser=2
6 replies
1 viewing
cyou
Mar 25, 2025
eibc
44 minutes ago
When MOP Letters Come Out
imagien_bad   12
N an hour ago by greenturtle3141
Hello everyone, I would like to ask about the validity of MAA's claim that they would release USA(J)MO results in 2-3 weeks. Is this true or is MAA just yapping.
12 replies
imagien_bad
4 hours ago
greenturtle3141
an hour ago
centslordm
centslordm   55
N 3 hours ago by tchange7575
Source: AIME II #8
From an unlimited supply of 1-cent coins, 10-cent coins, and 25-cent coins, Silas wants to find a collection of coins that has a total value of $N$ cents, where $N$ is a positive integer. He uses the so-called greedy algorithm, successively choosing the coin of greatest value that does not cause the value of his collection to exceed $N.$ For example, to get 42 cents, Silas will choose a 25-cent coin, then a 10-cent coin, then 7 1-cent coins. However, this collection of 9 coins uses more coins than necessary to get a total of 42 cents; indeed, choosing 4 10-cent coins and 2 1-cent coins achieves the same total value with only 6 coins. In general, the greedy algorithm succeeds for a given $N$ if no other collection of 1-cent, 10-cent, and 25-cent coins gives a total value of $N$ cents using strictly fewer coins than the collection given by the greedy algorithm. Find the number of values of $N$ between $1$ and $1000$ inclusive for which the greedy algorithm succeeds.
55 replies
centslordm
Feb 13, 2025
tchange7575
3 hours ago
Question
HopefullyMcNats2025   4
N 4 hours ago by xHypotenuse
Is it more difficult to make MOP or make usajmo, usapho, and usabo
4 replies
HopefullyMcNats2025
Today at 2:00 AM
xHypotenuse
4 hours ago
No more topics!
USAMO/USAJMO Swag?!
AoPSuser412   2
N Mar 29, 2025 by Schintalpati
I wondered if those who qualified got an email from MAA and Citadel Securities that they'd be sending out shirts. I filled out the form before the deadline but haven't received the shirt or any confirmation that it is being sent. Does anybody have theirs yet?
2 replies
AoPSuser412
Mar 29, 2025
Schintalpati
Mar 29, 2025
USAMO/USAJMO Swag?!
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AoPSuser412
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I wondered if those who qualified got an email from MAA and Citadel Securities that they'd be sending out shirts. I filled out the form before the deadline but haven't received the shirt or any confirmation that it is being sent. Does anybody have theirs yet?
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RedFireTruck
4221 posts
#2
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i didnt get anything either :(
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Schintalpati
608 posts
#3
Y by
AoPSuser412 wrote:
I wondered if those who qualified got an email from MAA and Citadel Securities that they'd be sending out shirts. I filled out the form before the deadline but haven't received the shirt or any confirmation that it is being sent. Does anybody have theirs yet?

lowk I was just thinking about this today lol. But no not yet
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