- American Mathematics Competitions
The

**American Mathematics Competitions (AMCs)**are the first of a series of competitions in high schoolmathematics that determines the United States Math Team, which competes in theInternational Mathematical Olympiad (IMO). This team, consisting of 6 high school students, competes in the IMO and has traditionally performed well. The United States Math Team of 1994 is the only team ever to achieve a perfect score (all six members earned perfect marks), and is colloquially known as the 'dream team'.Until

2000 , the American Mathematics Contest was known as the**American High School Mathematics Examination (AHSME)**. The contest was established in1950 .There are three levels:

* the AMC 8 is for students in grades 8 and below

* the AMC 10 is for students in grades 10 and below

* the AMC 12 is for students in grades 12 and belowStudents who perform well on the AMC 10 or AMC 12 exams are invited to participate in the

American Invitational Mathematics Examination . Students who perform well on theAmerican Invitational Mathematics Examination (AIME) are then invited to theUnited States of America Mathematical Olympiad (USAMO). Students who do exceptionally well on the USAMO (typically around 30 students) are invited to go to theMathematical Olympiad Summer Program (MOSP or more commonly, MOP), and six students are selected from MOP participants (through yet another exam, the Team Selection Test (TST)) to form the United States Math Team.**American Mathematics Competitions**is also the name of the organization, based inLincoln, Nebraska , responsible for creating, distributing and coordinating the American Mathematics Competitions contests, which include the American Mathematics Contest, AIME, and USAMO.**Benefits of participating**There are certain rewards for doing well on the AMC tests. For the AMC 8, a perfect score may earn a book prize or a plaque (as it did for the students who achieved perfect scores in 2002); a list of high scoring students is also available to colleges, institutions, and programs who want to attract students strong in mathematics. This may earn a high scorer an invitation to places like [

*http://www.mathpath.org MathPath*] , a summer program for middle schoolers. The top-scoring student in each school is also awarded a special pin.For the AMC 10 and AMC 12, a high score earns recognition (in particular, perfect scorers' names and pictures are published in a special awards book); as with the AMC 8, a list of high-scoring students is also available to colleges, institutions, etc. The top-scoring student in each school is awarded a special pin, or a bronze, silver, or gold medal, depending on how many times he or she was the top scorer. For more information on awards, visit [

*http://www.unl.edu/amc/d-publication/d4-awards/1012awards.html Awards for the AMC*] .In addition, high scorers on the AMC 10 and AMC 12 qualify to take the next round of competitions, the 3-hour long American Invitational Mathematics Examination (AIME), typically held in March or April. Any student who scores in the top 1% on the AMC 10, scores in the top 5% on the AMC 12, scores at least 100 points on the AMC 12, or scores at least 120 on the AMC 10 is invited to take the AIME. The answer to each of the 15 questions on the AIME is an

integer between 0 and 999inclusive , so while it is technically a multiple-choice test, it is not one in practice.The combined scores of the AMC and the AIME are used to determine those that will be invited back to take a 9-hour, 2-day, 6-problem session of proofs known as the United States of America Mathematical Olympiad (USAMO). Approximately thirty students are selected based on their USAMO performance to be trained at the

Mathematical Olympiad Summer Program , or MOSP (better known as MOP to its participants). In addition, in 2004, twenty-five 9th grade students were selected to participate in MOSP.During this summer camp, a series of exams are given to finally pick the 6 member US Mathematics Team. The current coaches of the US Math Team are

Titu Andreescu , director of the AMC, andZuming Feng , fromPhillips Exeter Academy .Major universities such as

MIT are beginning to ask applying students for their AMC scores. Since the AMC tests a deeper level of math than the SAT, this can help identify students who are ready for a rigorous undergraduate curriculum. Many top students appreciate the elevated difficulty and attention given to AMC exams and take preparation courses withArt of Problem Solving ,EPGY , and other specialized instructional institutions. Students even write their own mock AMC exams to challenge each other, and post them on the Art of Problem Solving website, where the mock exams get organized into theAoPSWiki ."Note: Some of this material is taken from [

*http://goodlymaths.0catch.com/contests/amc/amc_how_to_prepare.htm How to Prepare for the AMC Exams*] , with permission from the original author."**Rules and scoring****AMC 8**The AMC 8 has 25 multiple-choice questions and is to be taken in 40 minutes. No problems require the use of a calculator, and calculators are not allowed starting in 2008. The contest is held on a Tuesday in November; in the case of 2007, on Tuesday, November the 13th.

The AMC 8 is scored based on the number of questions answered correctly only. There is no penalty for getting a question wrong, and each question has equal value. Thus, a student who answers 23 questions correctly and 2 questions incorrectly receives a score of 23. This is not a standardized test; i.e. no school has to take it, but some schools choose to, mainly to encourage growth in mathematics among their students. Full scorers on the AMC 8 (25/25) get recognition and their picture on the AMCs web site as a top scorer. A score of 15 or more is excellent.

Rankings:20 and up: Distinction17 and up: Honor Roll15 and up+6th grade and under: Merit

**AMC 10 and AMC 12**The AMC 10 and AMC 12 each have 25 questions, and each is to be taken in 75 minutes. Until 2007, calculators were allowed, but like the AMC 8, supposedly unneeded.

Since the 2007-2008 school year, calculators have been disallowed on any of the selection tests for the USA Math Olympiad Team (including AMC 10/12, AIME, USAMO, TST)

Each exam is scored based on the number of questions answered correctly and the number of questions left blank. A student receives 6 points for each question answered correctly, 1.5 points for each question left blank, and no points for incorrect answers. Thus, a student who answers 18 correctly, leaves 5 blank, and misses 2 gets 18*6 + 5*1.5 = 115.5 points. The maximum possible score is 6*25 = 150 points; in 2006, the AMC 12 had a total of 17 perfect scores between its two administrations, while the AMC 10 had 89.

Until 1999, the exam had 30 questions and was 90 minutes long, scoring 5 points for correct answers and 2 points for omitted questions. When the exam was shortened as part of the 2000 rebranding, the value of a correct answer was increased to 6 points (keeping 150 as a perfect score). In 2001, the score of a blank was increased to 2.5 to penalize guessing. The 2007 exams were the first with only 1.5 points awarded for a blank, to discourage students from leaving a large number of questions blank in order to assure qualification for the AIME. For example, on the AMC 12, a student could advance with only 11 correct answers, presuming the remaining questions were left blank. Now, a student must answer at least 14 questions correctly to reach 100 points.

The exams overlap somewhat, with the medium-hard AMC 10 questions being the same as the medium-easy ones on the AMC 12. Since 2002, two administrations have been scheduled, so as to avoid conflicts with school breaks. The A contests are held on the first Tuesday in February, with the B contests 15 days later.Fact|date=February 2007 Students are eligible to take an A exam and a B exam, and may even take the AMC 10-A and the AMC 12-B, though they may not take both the AMC 10 and AMC 12 from the same date. If a student takes both exams, they may use either score towards qualification to the AIME or USAMO.

"Note: Some of this material is taken from [

*http://goodlymaths.0catch.com/contests/amc/amc_how_to_prepare.htm How to Prepare for the AMC Exams*] , with permission from the original author."**History****ee also***

American Invitational Mathematics Examination (AIME)

*United States of America Mathematical Olympiad (USAMO)

*Mathematical Olympiad Summer Program (MOSP or MOP)

*International Mathematical Olympiad (IMO)

*Art of Problem Solving (AoPS)

*List of mathematics competitions **External links*** [

*http://www.unl.edu/amc/ The Official AMC Home Page*]

* [*http://www.artofproblemsolving.com/Forum/resources.php?c=182 Problems and Solutions from past AMC exams*]

* [*http://www.artofproblemsolving.com/Forum/index.php?f=133 The Art of Problem Solving: AMC Forum*]

* [*http://goodlymaths.0catch.com/contests/amc/amc_how_to_prepare.htm How to Prepare for the AMC Exams*]

* [*http://www.imo.org.yu The IMO Compendium*] - huge collection of problems from mathematical competitions, and the most complete collection of IMO shortlists and longlists.

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