Y by PikaPika999
As someone who hasn’t logged on AoPS for a while, I was quite surprised to find that there is no discussion thread for Euclid 2025. Is discussion prohibited this year?
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k a June Highlights and 2025 AoPS Online Class Information
jlacosta 0
Congratulations to all the mathletes who competed at National MATHCOUNTS! If you missed the exciting Countdown Round, you can watch the video at this link. Are you interested in training for MATHCOUNTS or AMC 10 contests? How would you like to train for these math competitions in half the time? We have accelerated sections which meet twice per week instead of once starting on July 8th (7:30pm ET). These sections fill quickly so enroll today!
[list][*]MATHCOUNTS/AMC 8 Basics
[*]MATHCOUNTS/AMC 8 Advanced
[*]AMC 10 Problem Series[/list]
For those interested in Olympiad level training in math, computer science, physics, and chemistry, be sure to enroll in our WOOT courses before August 19th to take advantage of early bird pricing!
Summer camps are starting this month at the Virtual Campus in math and language arts that are 2 - to 4 - weeks in duration. Spaces are still available - don’t miss your chance to have a transformative summer experience. 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 upcoming events:
[list][*]June 5th, Thursday, 7:30pm ET: Open Discussion with Ben Kornell and Andrew Sutherland, Art of Problem Solving's incoming CEO Ben Kornell and CPO Andrew Sutherland host an Ask Me Anything-style chat. Come ask your questions and get to know our incoming CEO & CPO!
[*]June 9th, Monday, 7:30pm ET, Game Jam: Operation Shuffle!, Come join us to play our second round of Operation Shuffle! If you enjoy number sense, logic, and a healthy dose of luck, this is the game for you. No specific math background is required; all are welcome.[/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.
Introductory: Grades 5-10
Prealgebra 1 Self-Paced
Prealgebra 1
Sunday, Jun 15 - Oct 12
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Friday, Sep 5 - Jan 16
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Intermediate: Grades 8-12
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Calculus
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Group Theory
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MATHCOUNTS/AMC 8 Basics
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AIME Problem Series A
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F=ma Problem Series
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WOOT Programs
Visit the pages linked for full schedule details for each of these programs!
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Sunday, Jun 15 - Sep 14 (1:00 - 2:30 pm ET/10:00 - 11:30 am PT)
Tuesday, Jun 17 - Sep 2
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Relativity
Mon, Tue, Wed & Thurs, Jun 23 - Jun 26 (meets every day of the week!)
[list][*]MATHCOUNTS/AMC 8 Basics
[*]MATHCOUNTS/AMC 8 Advanced
[*]AMC 10 Problem Series[/list]
For those interested in Olympiad level training in math, computer science, physics, and chemistry, be sure to enroll in our WOOT courses before August 19th to take advantage of early bird pricing!
Summer camps are starting this month at the Virtual Campus in math and language arts that are 2 - to 4 - weeks in duration. Spaces are still available - don’t miss your chance to have a transformative summer experience. 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 upcoming events:
[list][*]June 5th, Thursday, 7:30pm ET: Open Discussion with Ben Kornell and Andrew Sutherland, Art of Problem Solving's incoming CEO Ben Kornell and CPO Andrew Sutherland host an Ask Me Anything-style chat. Come ask your questions and get to know our incoming CEO & CPO!
[*]June 9th, Monday, 7:30pm ET, Game Jam: Operation Shuffle!, Come join us to play our second round of Operation Shuffle! If you enjoy number sense, logic, and a healthy dose of luck, this is the game for you. No specific math background is required; all are welcome.[/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.
Introductory: Grades 5-10
Prealgebra 1 Self-Paced
Prealgebra 1
Sunday, Jun 15 - Oct 12
Monday, Jun 30 - Oct 20
Wednesday, Jul 16 - Oct 29
Sunday, Aug 17 - Dec 14
Tuesday, Aug 26 - Dec 16
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Prealgebra 2 Self-Paced
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Introduction to Algebra A Self-Paced
Introduction to Algebra A
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Introduction to Counting & Probability Self-Paced
Introduction to Counting & Probability
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AMC 12 Final Fives
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AIME Problem Series A
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F=ma Problem Series
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WOOT Programs
Visit the pages linked for full schedule details for each of these programs!
MathWOOT Level 1
MathWOOT Level 2
ChemWOOT
CodeWOOT
PhysicsWOOT
Programming
Introduction to Programming with Python
Sunday, Jun 15 - Sep 14 (1:00 - 2:30 pm ET/10:00 - 11:30 am PT)
Tuesday, Jun 17 - Sep 2
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Introduction to Physics
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Physics 1: Mechanics
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0 replies
AIME resources
senboy 4
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by wimpykid
what are some good book books(apart from aops books) that would prepare me for AMC 10/12 and AIME prep. I am aiming for about 100 on the amc 10 and a 4-7 on the AIME
4 replies
Should I Continue or Take a Break?
BlackOctopus23 3
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by kyEEcccccc
I am currently taking the USACO Bronze Problem Series course in AOPS, and I have been thinking whether this course is too hard for me based on several reasons. This class is not necessarily too difficult, but it simply requires time and dedication, time that is used up with my other classes: the Intermediate Algebra class from AOPS, and another class in school. Along with the classes, I have a theatre camp at the end of June. I have the option to continue and finish the class on July 22nd, or postpone the class and continue where I left off on June 22nd and finish in September. Which should I do?
3 replies
Question about problem
Spacepandamath13 3
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by nxchman
Source: AMC10
Charlyn walks completely around the boundary of a square whose sides are each 
km long. From any point on her path she can see exactly 
km horizontally in all directions. What is the area of the region consisting of all points Charlyn can see during her walk, expressed in square kilometers and rounded to the nearest whole number?
Most people jsut subtract the inner square 3*3 but why are there no semicircle areas in the empty spot in the middle?
km long. From any point on her path she can see exactly 
km horizontally in all directions. What is the area of the region consisting of all points Charlyn can see during her walk, expressed in square kilometers and rounded to the nearest whole number?
Most people jsut subtract the inner square 3*3 but why are there no semicircle areas in the empty spot in the middle?
3 replies
Polar Math Olympiad!
heheman 10
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by Alex-131
Hello everyone your invited to the 1st weekly Polar Math Olympiad!!
Registration Form: https://docs.google.com/forms/d/1vjeFzYwTBOvWmA1nn8nOQ5CR9DA5DxdRjSs6ffcWrDw/edit
Test link: https://docs.google.com/document/d/1FSMpkhRYDIOQPZQJC2URJaj9nMHDeNSTno51s_DTrE8/edit?tab=t.0
Submission Form: https://docs.google.com/forms/d/1vjeFzYwTBOvWmAe1n8nOQ5CR9DA5DxdRjSs6ffcWrDw/edit
Backup: [url]file:///C:/Users/goonboy/Downloads/PolarMathOlympiad.pdf[/url]
Hope you enjoy my weekly contest!
Registration Form: https://docs.google.com/forms/d/1vjeFzYwTBOvWmA1nn8nOQ5CR9DA5DxdRjSs6ffcWrDw/edit
Test link: https://docs.google.com/document/d/1FSMpkhRYDIOQPZQJC2URJaj9nMHDeNSTno51s_DTrE8/edit?tab=t.0
Submission Form: https://docs.google.com/forms/d/1vjeFzYwTBOvWmAe1n8nOQ5CR9DA5DxdRjSs6ffcWrDw/edit
Backup: [url]file:///C:/Users/goonboy/Downloads/PolarMathOlympiad.pdf[/url]
Hope you enjoy my weekly contest!
10 replies
No more topics!
Euclid discussion?
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Y by PikaPika999
MisakaMikasa wrote:
As someone who hasn’t logged on AoPS for a while, I was quite surprised to find that there is no discussion thread for Euclid 2025. Is discussion prohibited this year?
hi welcome back
discussion is still allowed lets make this the real thread
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Y by PikaPika999
Thanks Pekka. How do you feel about it this year? I honestly felt like it was somewhat harder than last year, but idk if that's because it actually got harder or I degenerated.
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Y by PikaPika999
it was probably around the same as last year
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#8
Apr 9, 2025, 7:49 PM
Y by
PEKKA wrote:
am i the only one who says its easier this year (p10 idea is trivial if you've seen it before)
unpopular opinion 6b was the best problem if you did it the fast way
unpopular opinion 6b was the best problem if you did it the fast way
I did it through Ptolemy + Heron, but I was the only one at my school who managed to solve it though lol. I agree that it is a very good problem.
I think the main reason that I felt it was harder was that I’ve never seen p10 and I failed to solve 9c. I definitely think p9 is harder is this year.
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#9
Apr 9, 2025, 8:23 PM
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I think 6B and P10 are outliers to the usual type of problems that CEMC writers put out, they really want you to make one crucial insight to somewhat cheese the problem, rather than go through a bunch of algebra(looking at you P9).
I actually got stuck on P8 for some reason(probably cuz I got used to AMC and scrambled when lot of counting and algebra showed up.
I actually got stuck on P8 for some reason(probably cuz I got used to AMC and scrambled when lot of counting and algebra showed up.
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#10
Apr 9, 2025, 8:24 PM
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Also how many points do the graders deduct if you showed a correct solution but made the steps really messy?
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MisakaMikasa wrote:
PEKKA wrote:
am i the only one who says its easier this year (p10 idea is trivial if you've seen it before)
unpopular opinion 6b was the best problem if you did it the fast way
unpopular opinion 6b was the best problem if you did it the fast way
I did it through Ptolemy + Heron, but I was the only one at my school who managed to solve it though lol. I agree that it is a very good problem.
I think the main reason that I felt it was harder was that I’ve never seen p10 and I failed to solve 9c. I definitely think p9 is harder is this year.
better sol is tangent addition imo
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#14
Apr 10, 2025, 1:29 PM
Y by
For some arcane reason I managed to solve 6b w/ cyclic quads and congruence, cool problem anyway
I solved 1-8 and gave solutions to 9a and 10a, didn't have time to crack 9b-c (I heard 9b-c wasn't that difficult?)
I solved 1-8 and gave solutions to 9a and 10a, didn't have time to crack 9b-c (I heard 9b-c wasn't that difficult?)
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