https://artofproblemsolving.com/wiki/api.php?action=feedcontributions&user=Madelyn&feedformat=atomAoPS Wiki - User contributions [en]2021-01-23T21:39:22ZUser contributionsMediaWiki 1.31.1https://artofproblemsolving.com/wiki/index.php?title=User:Piphi&diff=124971User:Piphi2020-06-11T16:16:44Z<p>Madelyn: /* User Count */</p>
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<div>{{User:Piphi/Template:Header}}<br />
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<div style="border:2px solid black; -webkit-border-radius: 10px; background:#dddddd"><br />
==<font color="black" style="font-family: ITC Avant Garde Gothic Std, Verdana"><div style="margin-left:10px">User Count</div></font>==<br />
<div style="margin-left: 10px; margin-bottom:10px"><font color="black">If this is your first time visiting this page, edit it by incrementing the user count below by one.</font></div><br />
<center><font size="101px">164</font></center><br />
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<div style="border:2px solid black; background:#cccccc;-webkit-border-radius: 10px; align:center"><br />
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==<font color="black" style="font-family: ITC Avant Garde Gothic Std, Verdana"><div style="margin-left:10px">About Me</div></font>==<br />
<div style="margin-left: 10px; margin-bottom:10px"><font color="black">Piphi is legendary.<br><br />
<br />
Piphi is the creator of the [[User:Piphi/Games|AoPS Wiki Games by Piphi]], the future of games on AoPS.<br><br />
<br />
Piphi also started the signature trend at around May 2020.<br><br />
<br />
Piphi has been very close to winning multiple [[Greed Control]] games, piphi placed 5th in game #18 and 2nd in game #19. Thanks to piphi, Greed Control games have started to be kept track of. Piphi made a spreadsheet that has all of Greed Control history [https://artofproblemsolving.com/community/c19451h2126208p15569802 here].<br><br />
<br />
Piphi also found out who won [[Reaper]] games #1 and #2 as seen [https://artofproblemsolving.com/community/c19451h1826745p15526330 here].<br><br />
<br />
Piphi has been called OP by many AoPSers, including the legendary [[User:Radio2|Radio2]] himself [https://artofproblemsolving.com/community/c19451h1826745p15526800 here].<br><br />
<br />
Piphi created the [[AoPS Administrators]] page, added most of the AoPS Admins to it, and created the scrollable table.<br><br />
<br />
Piphi has also added a lot of the info that is in the [[Reaper Archives]].<br><br />
<br />
Piphi has a side-project that is making the Wiki's [[Main Page]] look better, you can check that out [[User:Piphi/AoPS Wiki|here]].<br><br />
<br />
Piphi published Greed Control Game 19 statistics [https://artofproblemsolving.com/community/c19451h2126212 here].</font></div><br />
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<div style="border:2px solid black; background:#bbbbbb;-webkit-border-radius: 10px; align:center"><br />
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==<font color="black" style="font-family: ITC Avant Garde Gothic Std, Verdana"><div style="margin-left:10px">[[User:Piphi/Asymptote|Asymptote]]</div></font>==<br />
<div style="margin-left: 10px; margin-bottom:10px">For a complete list of my Asymptote drawings, go [[User:Piphi/Asymptote|here]].</div><br />
</div></div>Madelynhttps://artofproblemsolving.com/wiki/index.php?title=Ball-and-urn&diff=112089Ball-and-urn2019-11-23T21:24:02Z<p>Madelyn: /* Problems */ added example problem</p>
<hr />
<div>The '''ball-and-urn''' technique, also known as '''stars-and-bars''', is a commonly used technique in [[combinatorics]].<br />
<br />
It is used to solve problems of the form: how many ways can one distribute <math>k</math> indistinguishable objects into <math>n</math> bins? We can imagine this as finding the number of ways to drop <math>k</math> balls into <math>n</math> urns, or equivalently to drop <math>k</math> balls amongst <math>n-1</math> dividers. The number of ways to do such is <math>{n+k-1 \choose k}</math>.<br />
<br />
<br />
== Reasoning (One of Several) ==<br />
If you could only put one ball in each urn, then there would be <math>{n \choose k}</math> possibilities; the problem is that you can repeat urns, so this does not work. You can, however, reframe the problem as so: imagine that you have the <math>n</math> urns (numbered 1 through <math>n</math>) and then you also have <math>k-1</math> urns labeled "repeat 1st", "repeat 2nd", ..., and "repeat <math>k-1</math>-th". After the balls are in urns you can imagine that any balls in the "repeat" urns are moved on top of the correct balls in the first <math>n</math> urns, moving from left to right. There is a one-to-one correspondence between the non-repeating arrangements in these new urns and the repeats-allowed arrangements in the original urns. <br />
<br />
For a simple example, consider <math>4</math> balls and <math>5</math> urns. The one to one correspondence between several of the possibilities and the "repeated urns" version is shown. Since there are 4 balls, these examples will have three possible "repeat" urns. For simplicity, I am listing the numbers of the urns with balls in them, so "1,1,2,4" means <math>2</math> balls in urn <math>1, 1</math> in urn <math>2,</math> and <math>1</math> in urn <math>4.</math> The same is true for the "repeat" urns options but I use the notation <math>r_1</math> etc.<br />
<br />
*<math>1,2,3,4 \leftrightarrow 1,2,3,4</math> (no repeats).<br />
*<math>1,1,2,4 \leftrightarrow 1,2,4,</math> <math>r_1</math>.<br />
*<math>1,2,2,2 \leftrightarrow 1,2,</math> <math>r_2</math>, <math>r_3</math>.<br />
*<math>4,4,5,5 \leftrightarrow 4,5,</math> <math>r_1</math>, <math>r_2</math>.<br />
<br />
Since the re-framed version of the problem has <math>n+k-1</math> urns, and <math>k</math> balls that can each only go in one urn, the number of possible scenarios is simply <math>{n+k-1 <br />
\choose k}.</math><br />
<br />
== Problems ==<br />
*[[2003 AMC 10A Problems/Problem 21]]<br />
*[[Mock AIME 3 Pre 2005 Problems/Problem 2]]<br />
*[[2007 AIME I Problems/Problem 10]]<br />
*[[1986 AIME Problems/Problem 13]]<br />
*[[2018 AMC 10A Problems/Problem 11]]<br />
*[[2019 AMC 8 Problems/Problem 25]]<br />
[[Category:Combinatorics]]</div>Madelynhttps://artofproblemsolving.com/wiki/index.php?title=Committee_forming&diff=96310Committee forming2018-07-16T23:49:34Z<p>Madelyn: /* Problem */</p>
<hr />
<div>'''Committee forming''' is one technique for solving certain [[combinatorics]] problems.<br />
<br />
== Introduction ==<br />
First, we'll introduce committee forming with a simple example.<br />
<br />
=== Problem ===<br />
How many committees of 3 people can be formed from a group of 12 people?<br />
<br />
=== Solution ===<br />
Suppose that the order in which we choose the members of the committee didn't matter. Then there would be 12 possibilities for the first person, 11 for the second person, and 10 for the last person. So by the [[multiplication principle]] there would be <math>12\cdot 11\cdot 10 = 1320</math> total committees.<br />
<br />
However, the order we choose them ''does not'' matter. So we have [[overcounting | overcounted]]. Since there are <math>3! = 6</math> ways in which each distinct committee could have been chosen, we divide our result by 6 to get <math>\frac{1320}6 = 220</math>.<br />
<br />
''Note: there is a special notation for expressing the number of ways to choose a committee of size <math>k</math> from a set of size <math>n</math>. We use <math>{n\choose k}</math> which is called a [[binomial coefficient]]. From here on in this article, we will use this notation.''<br />
<br />
== Proving Combinatorial Identities ==<br />
The committee forming method can be a very powerful tool for proving [[combinatorial identity | combinatorial identities]].<br />
<br />
=== Problem ===<br />
Prove that <center><math>{n\choose 0} + {n\choose 1} + {n\choose 2} + \cdots + {n\choose n} = 2^n.</math></center><br />
<br />
=== Solution ===<br />
We can look at each term individually: <math>{n\choose 0}</math> is the number of ways that a committee of size 0 can be chosen, <math>{n\choose 1}</math> is the number of ways that a committee of size 1 can be chosen, and so on. Thus, the problem can be restated as finding the number of committees of any size that can be formed from a group of <math>n</math> people. Each person can either be in the committee or not in the committee. Since there are two possibilities for each person and each person is independent of every other person, there are <math>2^n</math> committees.<br />
<br />
== Further Problems ==<br />
=== Introductory Problems ===<br />
# Find the number of ways to choose a committee of size 4 from a group of 8 people.<br />
# How many ways can a committee of size 3 be chosen from a group of 10 people if one of the 3 people on the committee is designated as the president?<br />
# Compute the value of <math>{3\choose 0} + {3\choose 1} + {3\choose 2} + {3\choose 3}</math>.<br />
<br />
=== Intermediate Problems ===<br />
# Three slips of paper are dropped in a hat. The numbers 1, 3, and 9 are written on them, respectively. Any number of slips are pulled from the hat and the numbers written on them are added together. How many different sums are possible?<br />
# Prove that <math>{n\choose k} = {n\choose n-k}</math>.<br />
# Prove [[Blaise Pascal | Pascal]]'s identity: <center><math>{n\choose k} = {n-1\choose k} + {n-1\choose k-1}</math></center><br />
# Prove that <center><math> {m+n\choose k} = {m\choose 0}{n\choose k} + {m\choose 1}{n\choose k-1} + \cdots + {m\choose k}{n\choose 0}.</math></center><br />
<br />
== See also ==<br />
* [[Combinatorics]]<br />
* [[Block walking]]<br />
<br />
[[Category:Combinatorics]]<br />
[[Category:Definition]]</div>Madelynhttps://artofproblemsolving.com/wiki/index.php?title=List_of_United_States_middle_school_mathematics_competitions&diff=93966List of United States middle school mathematics competitions2018-04-15T19:21:55Z<p>Madelyn: /* National middle school mathematics competitions */</p>
<hr />
<div>== National middle school mathematics competitions ==<br />
<br />
* [[AMC 8]] hosted by the [[American Mathematics Competitions]] is a very large middle school math contest taken in-school. ([http://www.maa.org/math-competitions website])<br />
* [[American Scholastic Mathematics Association]] (ASMA)<br />
* [http://euclidlab.org/programs/archimedean-challenge/1 Archimedean Challenge #1]<br />
* [http://www.beestar.org/exam?cmd=natl_cp&type=intro Beestar National Competition]: The largest online math contest for students in grades 2-8. <br />
* [[Continental Mathematics League]] ([https://www.cmleague.com/ website])<br />
* [http://www.mindresearch.org/gameathon/ Game-a-thon] challenges students to design and build math games in this national contest.<br />
* [[MathCounts|MATHCOUNTS]] is perhaps the largest and well-known middle school math contest. ([https://www.mathcounts.org/ website])<br />
* [[Mathematical Olympiads for Elementary and Middle Schools]] (MOEMS) is a very large elementary and middle school math competition. ([http://www.moems.org/ website])<br />
* The [[Math Bee]] hosted by the [[North South Foundation]] <br />
* [[Math League]] has different names in different states and regions.<br />
* [http://www.noetic-learning.com/mathcontest Noetic Learning Math Contest]: a popular problem-solving contest for students in grades 2-8.<br />
* [[Online Math League]] (OML) <br />
* [http://www.perennialmath.com Perennial Math]<br />
* [[mathleague.org]] -- elementary, middle, high school. ([http://www.mathleague.org website])<br />
* [http://www.mathnasium.com/trimathlon National Trimathlon] is a math competition for kids in grades 3 through 6.<br />
*[[RSM Foundation International Math Contest]] is a two-round Olympiad-style contest for students in grades 3-8 ([https://rsmfoundation.org/math-contest/ website])<br />
*[[SIGMA]] is a 5 round 8 question 30 minute competition for 5th-9th graders with different tests for each grade.<br />
<br />
== State middle school mathematics competitions ==<br />
<br />
* [[Alabama mathematics competitions]]<br />
* [[Alaska mathematics competitions]]<br />
* [[Arizona mathematics competitions]]<br />
* [[Arkansas mathematics competitions]]<br />
* [[California mathematics competitions]]<br />
* [[Colorado mathematics competitions]]<br />
* [[Connecticut mathematics competitions]]<br />
* [[Delaware mathematics competitions]]<br />
* [[Florida mathematics competitions]]<br />
* [[Georgia mathematics competitions]]<br />
* [[Hawaii mathematics competitions]]<br />
* [[Idaho mathematics competitions]]<br />
* [[Illinois mathematics competitions]]<br />
* [[Indiana mathematics competitions]]<br />
* [[Iowa mathematics competitions]]<br />
* [[Kansas mathematics competitions]]<br />
* [[Kentucky mathematics competitions]]<br />
* [[Louisiana mathematics competitions]]<br />
* [[Maine mathematics competitions]]<br />
* [[Maryland mathematics competitions]]<br />
* [[Massachusetts mathematics competitions]]<br />
* [[Michigan mathematics competitions]]<br />
* [[Minnesota mathematics competitions]]<br />
* [[Mississippi mathematics competitions]]<br />
* [[Missouri mathematics competitions]]<br />
* [[Montana mathematics competitions]]<br />
* [[Nebraska mathematics competitions]]<br />
* [[Nevada mathematics competitions]]<br />
* [[New Hampshire mathematics competitions]]<br />
* [[New Jersey mathematics competitions]]<br />
* [[New Mexico mathematics competitions]]<br />
* [[New York mathematics competitions]]<br />
* [[North Carolina mathematics competitions]]<br />
* [[North Dakota mathematics competitions]]<br />
* [[Ohio mathematics competitions]]<br />
* [[Oklahoma mathematics competitions]]<br />
* [[Oregon mathematics competitions]]<br />
* [[Pennsylvania mathematics competitions]]<br />
* [[Rhode Island mathematics competitions]]<br />
* [[South Carolina mathematics competitions]]<br />
* [[South Dakota mathematics competitions]]<br />
* [[Tennessee mathematics competitions]]<br />
* [[Texas mathematics competitions]]<br />
* [[Utah mathematics competitions]]<br />
* [[Vermont mathematics competitions]]<br />
* [[Virginia mathematics competitions]]<br />
* [[Washington mathematics competitions]]<br />
* [[West Virginia mathematics competitions]]<br />
* [[Wisconsin mathematics competitions]]<br />
* [[Wyoming mathematics competitions]]<br />
<br />
== Resources for middle school mathematics competition students ==<br />
=== Books ===<br />
* [http://www.artofproblemsolving.com/Books/AoPS_B_About.php Art of Problem Solving Books] -- Introductory subject texts and Art of Problem Solving Volume 1 are usually recommended for middle school math team students.<br />
* [[Mathematical Olympiads for Elementary and Middle Schools]] (MOEMS) publishes [http://www.artofproblemsolving.com/Books/AoPS_B_CP_MOEMS.php two problem solving books].<br />
* [[MathCounts]] produces new material annually, some of which is available [http://www.artofproblemsolving.com/Books/AoPS_B_CP_MC.php here].<br />
<br />
=== Distance Classes ===<br />
* [http://www.artofproblemsolving.com/Books/AoPS_B_About.php Art of Problem Solving Classes] -- Introductory classes are usually recommended.<br />
* [[Education Program for Gifted Youth]] (EPGY) hosts [http://epgy.stanford.edu/ online classes] in mathematics and other subjects.<br />
<br />
=== Online ===<br />
* [[Art of Problem Solving]] (AoPS) is a vast resource for avid students of mathematics. Free resources at AoPS include articles, [http://www.artofproblemsolving.com/Forum/index.php?f=298 middle school math forums], blogs, [[Math Jams]], the [[AoPSWiki]], and much more.<br />
* [http://mathforum.org/ The Math Forum] at Drexel University is a very large math site with a lot of great content.<br />
<br />
== See also ==<br />
* [[List of mathematics competitions]]<br />
* [[List of United States elementary school mathematics competitions]]<br />
* [[List of United States high school mathematics competitions]]<br />
* [[Mathematics competition resources]]<br />
<br />
[[Category:Mathematics competitions]]</div>Madelynhttps://artofproblemsolving.com/wiki/index.php?title=List_of_United_States_middle_school_mathematics_competitions&diff=93735List of United States middle school mathematics competitions2018-04-02T18:50:54Z<p>Madelyn: /* National middle school mathematics competitions */</p>
<hr />
<div>== National middle school mathematics competitions ==<br />
<br />
* [[AMC 8]] hosted by the [[American Mathematics Competitions]] is a very large middle school math contest taken in-school. ([http://www.maa.org/math-competitions website])<br />
* [[American Scholastic Mathematics Association]] (ASMA)<br />
* [http://euclidlab.org/programs/archimedean-challenge/1 Archimedean Challenge #1]<br />
* [http://www.beestar.org/exam?cmd=natl_cp&type=intro Beestar National Competition]: The largest online math contest for students in grades 2-8. <br />
* [[Continental Mathematics League]] ([https://www.cmleague.com/ website])<br />
* [http://www.mindresearch.org/gameathon/ Game-a-thon] challenges students to design and build math games in this national contest.<br />
* [[MathCounts|MATHCOUNTS]] is perhaps the largest and well-known middle school math contest. ([https://www.mathcounts.org/ website])<br />
* [[Mathematical Olympiads for Elementary and Middle Schools]] (MOEMS) is a very large elementary and middle school math competition. ([http://www.moems.org/ website])<br />
* The [[Math Bee]] hosted by the [[North South Foundation]] <br />
* [[Math League]] has different names in different states and regions.<br />
* [http://www.noetic-learning.com/mathcontest Noetic Learning Math Contest]: a popular problem-solving contest for students in grades 2-8.<br />
* [[Online Math League]] (OML) <br />
* [http://www.perennialmath.com Perennial Math]<br />
* [[mathleague.org]] -- elementary, middle, high school. ([http://www.mathleague.org website])<br />
* [http://www.mathnasium.com/trimathlon National Trimathlon] is a math competition for kids in grades 3 through 6.<br />
*[[RSM Foundation International Math Contest]] is a two-round Olympiad-style contest for students in grades 3-8 ([https://rsmfoundation.org/math-contest/ website])<br />
*[[SIGMA]] is a 5 round 8 question 40 minute competition for 5th-9th graders with different tests for each grade.<br />
<br />
== State middle school mathematics competitions ==<br />
<br />
* [[Alabama mathematics competitions]]<br />
* [[Alaska mathematics competitions]]<br />
* [[Arizona mathematics competitions]]<br />
* [[Arkansas mathematics competitions]]<br />
* [[California mathematics competitions]]<br />
* [[Colorado mathematics competitions]]<br />
* [[Connecticut mathematics competitions]]<br />
* [[Delaware mathematics competitions]]<br />
* [[Florida mathematics competitions]]<br />
* [[Georgia mathematics competitions]]<br />
* [[Hawaii mathematics competitions]]<br />
* [[Idaho mathematics competitions]]<br />
* [[Illinois mathematics competitions]]<br />
* [[Indiana mathematics competitions]]<br />
* [[Iowa mathematics competitions]]<br />
* [[Kansas mathematics competitions]]<br />
* [[Kentucky mathematics competitions]]<br />
* [[Louisiana mathematics competitions]]<br />
* [[Maine mathematics competitions]]<br />
* [[Maryland mathematics competitions]]<br />
* [[Massachusetts mathematics competitions]]<br />
* [[Michigan mathematics competitions]]<br />
* [[Minnesota mathematics competitions]]<br />
* [[Mississippi mathematics competitions]]<br />
* [[Missouri mathematics competitions]]<br />
* [[Montana mathematics competitions]]<br />
* [[Nebraska mathematics competitions]]<br />
* [[Nevada mathematics competitions]]<br />
* [[New Hampshire mathematics competitions]]<br />
* [[New Jersey mathematics competitions]]<br />
* [[New Mexico mathematics competitions]]<br />
* [[New York mathematics competitions]]<br />
* [[North Carolina mathematics competitions]]<br />
* [[North Dakota mathematics competitions]]<br />
* [[Ohio mathematics competitions]]<br />
* [[Oklahoma mathematics competitions]]<br />
* [[Oregon mathematics competitions]]<br />
* [[Pennsylvania mathematics competitions]]<br />
* [[Rhode Island mathematics competitions]]<br />
* [[South Carolina mathematics competitions]]<br />
* [[South Dakota mathematics competitions]]<br />
* [[Tennessee mathematics competitions]]<br />
* [[Texas mathematics competitions]]<br />
* [[Utah mathematics competitions]]<br />
* [[Vermont mathematics competitions]]<br />
* [[Virginia mathematics competitions]]<br />
* [[Washington mathematics competitions]]<br />
* [[West Virginia mathematics competitions]]<br />
* [[Wisconsin mathematics competitions]]<br />
* [[Wyoming mathematics competitions]]<br />
<br />
== Resources for middle school mathematics competition students ==<br />
=== Books ===<br />
* [http://www.artofproblemsolving.com/Books/AoPS_B_About.php Art of Problem Solving Books] -- Introductory subject texts and Art of Problem Solving Volume 1 are usually recommended for middle school math team students.<br />
* [[Mathematical Olympiads for Elementary and Middle Schools]] (MOEMS) publishes [http://www.artofproblemsolving.com/Books/AoPS_B_CP_MOEMS.php two problem solving books].<br />
* [[MathCounts]] produces new material annually, some of which is available [http://www.artofproblemsolving.com/Books/AoPS_B_CP_MC.php here].<br />
<br />
=== Distance Classes ===<br />
* [http://www.artofproblemsolving.com/Books/AoPS_B_About.php Art of Problem Solving Classes] -- Introductory classes are usually recommended.<br />
* [[Education Program for Gifted Youth]] (EPGY) hosts [http://epgy.stanford.edu/ online classes] in mathematics and other subjects.<br />
<br />
=== Online ===<br />
* [[Art of Problem Solving]] (AoPS) is a vast resource for avid students of mathematics. Free resources at AoPS include articles, [http://www.artofproblemsolving.com/Forum/index.php?f=298 middle school math forums], blogs, [[Math Jams]], the [[AoPSWiki]], and much more.<br />
* [http://mathforum.org/ The Math Forum] at Drexel University is a very large math site with a lot of great content.<br />
<br />
== See also ==<br />
* [[List of mathematics competitions]]<br />
* [[List of United States elementary school mathematics competitions]]<br />
* [[List of United States high school mathematics competitions]]<br />
* [[Mathematics competition resources]]<br />
<br />
[[Category:Mathematics competitions]]</div>Madelynhttps://artofproblemsolving.com/wiki/index.php?title=List_of_United_States_middle_school_mathematics_competitions&diff=93734List of United States middle school mathematics competitions2018-04-02T18:50:33Z<p>Madelyn: /* National middle school mathematics competitions */</p>
<hr />
<div>== National middle school mathematics competitions ==<br />
<br />
* [[AMC 8]] hosted by the [[American Mathematics Competitions]] is a very large middle school math contest taken in-school. ([http://www.maa.org/math-competitions website])<br />
* [[American Scholastic Mathematics Association]] (ASMA)<br />
* [http://euclidlab.org/programs/archimedean-challenge/1 Archimedean Challenge #1]<br />
* [http://www.beestar.org/exam?cmd=natl_cp&type=intro Beestar National Competition]: The largest online math contest for students in grades 2-8. <br />
* [[Continental Mathematics League]] ([https://www.cmleague.com/ website])<br />
* [http://www.mindresearch.org/gameathon/ Game-a-thon] challenges students to design and build math games in this national contest.<br />
* [[MathCounts|MATHCOUNTS]] is perhaps the largest and well-known middle school math contest. ([https://www.mathcounts.org/ website])<br />
* [[Mathematical Olympiads for Elementary and Middle Schools]] (MOEMS) is a very large elementary and middle school math competition. ([http://www.moems.org/ website])<br />
* The [[Math Bee]] hosted by the [[North South Foundation]] <br />
* [[Math League]] has different names in different states and regions.<br />
* [http://www.noetic-learning.com/mathcontest Noetic Learning Math Contest]: a popular problem-solving contest for students in grades 2-8.<br />
* [[Online Math League]] (OML) <br />
* [http://www.perennialmath.com Perennial Math]<br />
* [[mathleague.org]] -- elementary, middle, high school. ([http://www.mathleague.org website])<br />
* [http://www.mathnasium.com/trimathlon National Trimathlon] is a math competition for kids in grades 3 through 6.<br />
*[[RSM Foundation International Math Contest]] is a two-round Olympiad-style contest for students in grades 3-8 ([https://rsmfoundation.org/math-contest/ website])<br />
*[[Sigma]] is a 5 round 8 question 40 minute competition for 5th-9th graders with different tests for each grade.<br />
<br />
== State middle school mathematics competitions ==<br />
<br />
* [[Alabama mathematics competitions]]<br />
* [[Alaska mathematics competitions]]<br />
* [[Arizona mathematics competitions]]<br />
* [[Arkansas mathematics competitions]]<br />
* [[California mathematics competitions]]<br />
* [[Colorado mathematics competitions]]<br />
* [[Connecticut mathematics competitions]]<br />
* [[Delaware mathematics competitions]]<br />
* [[Florida mathematics competitions]]<br />
* [[Georgia mathematics competitions]]<br />
* [[Hawaii mathematics competitions]]<br />
* [[Idaho mathematics competitions]]<br />
* [[Illinois mathematics competitions]]<br />
* [[Indiana mathematics competitions]]<br />
* [[Iowa mathematics competitions]]<br />
* [[Kansas mathematics competitions]]<br />
* [[Kentucky mathematics competitions]]<br />
* [[Louisiana mathematics competitions]]<br />
* [[Maine mathematics competitions]]<br />
* [[Maryland mathematics competitions]]<br />
* [[Massachusetts mathematics competitions]]<br />
* [[Michigan mathematics competitions]]<br />
* [[Minnesota mathematics competitions]]<br />
* [[Mississippi mathematics competitions]]<br />
* [[Missouri mathematics competitions]]<br />
* [[Montana mathematics competitions]]<br />
* [[Nebraska mathematics competitions]]<br />
* [[Nevada mathematics competitions]]<br />
* [[New Hampshire mathematics competitions]]<br />
* [[New Jersey mathematics competitions]]<br />
* [[New Mexico mathematics competitions]]<br />
* [[New York mathematics competitions]]<br />
* [[North Carolina mathematics competitions]]<br />
* [[North Dakota mathematics competitions]]<br />
* [[Ohio mathematics competitions]]<br />
* [[Oklahoma mathematics competitions]]<br />
* [[Oregon mathematics competitions]]<br />
* [[Pennsylvania mathematics competitions]]<br />
* [[Rhode Island mathematics competitions]]<br />
* [[South Carolina mathematics competitions]]<br />
* [[South Dakota mathematics competitions]]<br />
* [[Tennessee mathematics competitions]]<br />
* [[Texas mathematics competitions]]<br />
* [[Utah mathematics competitions]]<br />
* [[Vermont mathematics competitions]]<br />
* [[Virginia mathematics competitions]]<br />
* [[Washington mathematics competitions]]<br />
* [[West Virginia mathematics competitions]]<br />
* [[Wisconsin mathematics competitions]]<br />
* [[Wyoming mathematics competitions]]<br />
<br />
== Resources for middle school mathematics competition students ==<br />
=== Books ===<br />
* [http://www.artofproblemsolving.com/Books/AoPS_B_About.php Art of Problem Solving Books] -- Introductory subject texts and Art of Problem Solving Volume 1 are usually recommended for middle school math team students.<br />
* [[Mathematical Olympiads for Elementary and Middle Schools]] (MOEMS) publishes [http://www.artofproblemsolving.com/Books/AoPS_B_CP_MOEMS.php two problem solving books].<br />
* [[MathCounts]] produces new material annually, some of which is available [http://www.artofproblemsolving.com/Books/AoPS_B_CP_MC.php here].<br />
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=== Distance Classes ===<br />
* [http://www.artofproblemsolving.com/Books/AoPS_B_About.php Art of Problem Solving Classes] -- Introductory classes are usually recommended.<br />
* [[Education Program for Gifted Youth]] (EPGY) hosts [http://epgy.stanford.edu/ online classes] in mathematics and other subjects.<br />
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=== Online ===<br />
* [[Art of Problem Solving]] (AoPS) is a vast resource for avid students of mathematics. Free resources at AoPS include articles, [http://www.artofproblemsolving.com/Forum/index.php?f=298 middle school math forums], blogs, [[Math Jams]], the [[AoPSWiki]], and much more.<br />
* [http://mathforum.org/ The Math Forum] at Drexel University is a very large math site with a lot of great content.<br />
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== See also ==<br />
* [[List of mathematics competitions]]<br />
* [[List of United States elementary school mathematics competitions]]<br />
* [[List of United States high school mathematics competitions]]<br />
* [[Mathematics competition resources]]<br />
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[[Category:Mathematics competitions]]</div>Madelynhttps://artofproblemsolving.com/wiki/index.php?title=AoPS_Moderators&diff=89386AoPS Moderators2018-01-03T20:36:39Z<p>Madelyn: /* List of Admins */</p>
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<div>A moderator on the Art of Problem Solving website is a non-administrator user who has powers for a particular forum which non-moderators don't. That is: they can lock topics in a forum, move them, delete them, comment about certain posts and so on. The short form for moderator is mod, the short term for administrator is admin.<br />
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When a user is an Administrator, their name shows up in red.<br />
When they are a mod, their name shows up in green.<br />
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An user automatically becomes an administrator of a forum if they create it. This user can manage who gets to be a mod or admin in said forum. <br />
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==Moderators vs. Administrators==<br />
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Administrators are more powerful in Art of Problem Solving than moderators. Moderators answer to Administrators, and not vice versa.<br />
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Some admins might have their names in blue instead of red. Those are AoPS site administrators. They are administrators to all forums on AoPS, even private forums and class forums.<br />
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==List of Admins ==<br />
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Below is a list of some of the current AoPS site admins:<br />
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5space (Dustin Ransom)<br />
ahuhn (Anika Huhn)<br />
ak.santana (Anakaren Santana)<br />
amysz (Amy Szczepanski)<br />
copeland (Jeremy Copeland)<br />
corinne (Corinne Madsen)<br />
devenware (Deven Ware)<br />
DuncanG (Duncan Gilles)<br />
douchman<br />
gmaas (Grayson Maas)<br />
jbatterson<br />
jgf1123 (James Fung)<br />
LauraZed (Laura Zehender)<br />
levans (Larry Evans)<br />
melschulz<br />
paulhryu (Paul Ryu)<br />
phxu (Phyllis Xu)<br />
psalerno (Paul Salerno)<br />
rrusczyk (Richard Rusczyk)<br />
rjashmore<br />
Selester<br />
srogers (Shannon Rogers)<br />
sseraj (Samer Seraj)<br />
yatingliu</div>Madelyn