请输入您要查询的百科知识:

 

词条 Mathcounts
释义

  1. Competition Levels

  2. Structure

      Sprint Round    Target Round    Team Round    Countdown Round    Masters Round    Ciphering Round  

  3. Scholarships

  4. Scoring and ranking

      Individual score    Team score  

  5. History

  6. Winners

  7. National Champions

  8. See also

  9. Notes and references

  10. External links

{{multiple issues|{{news release|1=article|date=April 2014}}{{overly detailed|date=April 2014}}{{tone|date=April 2014}}
}}{{Infobox organization
| name = Mathcounts
| bgcolor =
| fgcolor =
| image = Mathcounts-logo-2013.png
| image_border =
| size = 300px
| alt =
| caption = Mathcounts logo
| motto =
| formation =
| type = Foundation
| purpose =
| headquarters = Alexandria, Virginia
| location = United States
| language =
| leader_title = Honorary Chair
| leader_name = Thomas A. Kennedy[1]
| leader_title2 =
| leader_name2 =
| leader_title3 =
| leader_name3 =
| leader_title4 =
| leader_name4 =
| key_people =
| main_organ = Board of Directors
| affiliations =
| budget =
| num_staff =
| num_volunteers =
| website = {{URL|http://mathcounts.org/}}
| remarks =
| former name =
}}Mathcounts, stylized as MATHCOUNTS, is a nationwide middle school mathematics competition held in various places in the United States. Its founding sponsors include the CNA Foundation, the National Society of Professional Engineers, and the National Council of Teachers of Mathematics.[2]

The subject matter includes geometry, counting, probability, number theory, and algebra.[3]

Competition Levels

The competition is divided into four stages: school, chapter, state, and national. The problems increase in difficulty between levels, such that school-level problems are rather simple while national-level problems are extremely challenging. Each school is allowed to register ten students, including a group of four designated as the school team.

The top two teams as well as the top four individuals from each Chapter competition advance to States. The exact number of qualifiers varies from chapter to chapter, because sometimes the 3rd place team or even both the 3rd place and 4th place teams from a chapter might qualify for States. At the State Round, only the top 4 individuals reach Nationals. The coach of the first place team at States becomes the coach for that state at Nationals. At the National Competition, all the competitors compete individually, in the Sprint and Target Rounds, but also, the four individuals from each state compete in the team round to represent their state.

Structure

The Mathcounts program is open to sixth, seventh, and eighth-grade students in 56 U.S. states and territories. Students can participate through the Competition Program, the Club Program, and the Real Math Challenge.[4] Prior to 2010, homeschools and virtual schools were allowed to compete in all aspects of the program. In the 2010–2011 program year,{{contradiction inline|date=January 2014}} such schools were limited to individual participation with one exception: homeschool clubs that participated as a team in 2009–2010 were grandfathered into the 2010–2011 competition.[5] Starting with the 2010–2011 program year,{{contradiction inline|date=January 2014}} the Board of Directors established new guidelines that again allowed home and virtual schools to participate both as individuals and as members of a team.[6]

The standard Mathcounts competition contains four rounds: Sprint, Target, Team, and Countdown. At some state competitions, the top four contestants, determined by the Countdown Round, participate in the Masters Round. Some state and regional competitions add extra rounds, such as the Ciphering round.[7]

Sprint Round

In the Sprint Round, contestants solve a written exam consisting of 30 problems with a time limit of 40 minutes. There are no penalties for incorrect answers. Calculators are not permitted, and contestants work individually.

Questions in the Sprint Round are usually the easiest problems in the written individual contests because the Sprint Round is intended to test contestants' ability to solve problems within a tight time constraint. The problems generally increase in difficulty so that nearly all students can solve the first few problems while few to none correctly answer the last few. Sprint round questions are worth one point each. Contestants work individually.[8]

Target Round

The Target Round contains eight problems, presented in four pairs of two. Students have six minutes to work on each pair of problems. Calculators may be used during this round. The problems in the Target Round are usually more difficult than most of the problems in the Sprint Round. Each correctly answered problem is worth two points. The problems generally increase in difficulty as the round progresses. Contestants work individually.[9]

Team Round

The Team Round is a ten question exam which teams have twenty minutes to complete. Calculators are allowed, and up to four teammates take the examination as a group. Contestants are allowed to discuss the problems with their teammates. Team round problems are typically more difficult than those on the individual rounds. Each question is worth two points.[9]

Countdown Round

The Countdown Round is a fast-paced head-to-head competition. It is the only oral round, and it is the final round in most Mathcounts competitions. The Countdown Round is an optional round at State and Chapter competitions. At some competitions, including Nationals, the winner of the Countdown Round is considered the overall champion. Otherwise, the round is purely for fun. Calculators are not allowed in the Countdown Round.[9] The National Countdown Round was shown on ESPN from 2003 to 2005, and now it is presented in a webcast every year.

The Countdown Round consists of several matches in which two students are pitted head to head. A problem is displayed by a projector, and the two contestants race to finish the problem (with pencil and paper). Forty-five seconds are allotted per problem. Upon finishing the problem, a contestant is expected to press his/her buzzer. The first person to buzz in with the correct answer gains a point. If an incorrect answer is given, the contestant will not get a point and is not allowed to buzz in again. It is not uncommon for a contestant to press their buzzer before actually solving the problem, intending to make use of the allotted 3 seconds to finish solving the problem.

From 1988 to 2003, the National Countdown Round was a head-to-head ladder-style competition. The tenth and ninth-place finishers on the written portion played a match; the loser was ranked tenth while the winner played against the eighth-place competitor. The loser of this match ranked ninth while the winner moved on to play against the seventh-place student. This continued until a challenger reached the first-place student; the loser of this final match ranked second while the winner was declared the champion. It is from this pattern of the tenth, ninth, eighth, seventh, etc. that the name "Countdown" was derived. This format is still used in many Chapter and State competitions, in part because Mathcounts requires that this structure be used if the Countdown Round will determine the final individual rankings.

Beginning in 2004, the format of the Countdown Round at the national competition changed to a weighted single elimination bracket. The top twelve scorers on the written portion advance to the Countdown Round. In the first round, the top four scorers on the written portion received a bye into the second round leaving the fifth place to face off against the twelfth place, and the sixth place to face off against the eleventh place, etc. This change was presumably made to ensure that the final round would be more exciting and more suspenseful, since now the champion must win at least three consecutive matches, while previously a student could potentially win the championship after defeating a single opponent.[10]

Masters Round

This round has been replaced by the Math Video Challenge in current years. At the national level and in some states, there is an additional round known as the Masters Round, open only to the top four contestants. Participants are given thirty minutes to develop a fifteen-minute oral presentation based upon an advanced mathematical topic, not known to them before their preparation time begins. While an award is given for the best presentation as determined by a panel of judges, the Masters Round does not affect participants' rankings.

Ciphering Round

In some states (most notably Florida), at both the chapter and state levels, there is an extra Ciphering Round. In this round, which does not count for overall individual or team scores, each school sends one representative to a stage. A problem is then flashed up on a projector screen, and competitors, working individually, have one minute to answer. No calculators are allowed. Using a buzzer system, the judges then determine the order in which the students determined their answers. The first person to answer correctly earns his/her school five points, the second person four points, etc. After four questions, each school switches their representative. The process is repeated four times so that each team member has a chance to compete in a round. The winner of this round is the school that accumulates the most points. Because no calculators are allowed, competitors must be able to do calculations quickly and mentally.[9]

Scholarships

Scholarships are awarded to high-ranking students at the national competition, and many universities give scholarships to the top finishers at the state level. Some math summer programs, such as MathPath, give out scholarships to top Mathcounts students.[11] Some of Mathcounts' other sponsors, such as Texas Instruments, General Motors, and Lockheed Martin, also provide scholarships.[12]

Qualification for Mathcounts scholarships usually vary by state, but scholarships and prizes are often awarded to the top ten individuals and the top three state teams at the national level.[13] Raytheon offers scholarships to undergraduate students who volunteer as coaches for Mathcounts teams.[11]

Scoring and ranking

Individual score

Each contestant's individual score is equal to his or her Sprint Round score (out of 30) plus twice his or her Target Round score (out of 8). A perfect score is 46.

At the Chapter and State levels, ranking is determined by either raw individual score or by the results of the Countdown Round, depending on the state/chapter. Ties are broken by comparing performance on the Sprint Round. If contestants are still tied, the last five problems of the Sprint Round are compared. If contestants are still tied, pairs of Target problems are used to break ties. Occasionally, a tie-breaker round may be needed if the contestants have answered exactly the same questions correctly and incorrectly.

At the National Competition, ranking on the written portion is used to determine seeding in the Countdown round. The final place is determined by performance in the countdown round.[14]

Team score

A team's score is equal the average of the sum of its members' individual scores plus twice the number of questions answered correctly on the team round. With the individual scores of a maximum of 46 each and team-round scores a maximum of 20, a perfect team score is 66.[14]

History

Mathcounts was started in 1983 by the National Society of Professional Engineers, National Council of Teachers of Mathematics and CNA Foundation to increase middle school interest in mathematics.[15] The first national-level competition in the modern format was held in 1984. Before 2002, every national Mathcounts competition was held in Washington, D.C.[16] The competition spread quickly in middle schools, and today it is the best-known middle school mathematics competition.[17]

Winners

Each year, at the National level, teams of four students per state compete.[18] The top team as well as the participants in the Countdown round often win a trip to the White House and meet the current President of the United States.[19] They also may receive scholarships from Mathcounts' sponsors.[20] The 2018 National Competition was hosted in Washington D.C.

National Champions

YearIndividual winnerState-team winnerWinning-state coachLocationNotes
1984Edwards, Michael|Michael Edwards, Texas}} Virginia (1) Washington, D.C. [21]
1985Kokesh, Timothy|Timothy Kokesh, Oklahoma}} Florida Burt Kaufman Washington, D.C.
1986Ewald, Brian David|Brian David Ewald, Florida}} California (1) Washington, D.C.
1987Mann, Russell|Russell Mann, Tennessee}} New York (1) Robert C. Bieringer Washington, D.C.
1988Schultz, Andrew|Andrew Schultz, Illinois}} New York (2) Washington, D.C.
1989Kurz, Albert|Albert Kurz, Pennsylvania}} North Carolina Barbara Sydnor Washington, D.C.
1990Jenkins, Brian|Brian Jenkins, Arkansas}} Ohio Washington, D.C.
1991Weinstein, Jonathan L.|Jonathan L. Weinstein, Massachusetts}} Alabama Cindy Breckenridge Washington, D.C. [22]
1992Gnepp, Andrei C.|Andrei C. Gnepp, Ohio}} California (2) Washington, D.C. [23]
1993Bosley, Carleton|Carleton Bosley, Kansas}} Kansas Washington, D.C. [24]
1994Engel, William O.|William O. Engel, Illinois}} Pennsylvania (1) Matt Zipin Washington, D.C. [24]
1995Reifsnyder, Richard|Richard Reifsnyder, Kentucky}} Indiana (1) Washington, D.C. [25]
1996Schwartz, Alexander|Alexander Schwartz, Pennsylvania}} Pennsylvania (2) Washington, D.C. [26]
1997Liu, Zhihao|Zhihao Liu, Wisconsin}} Massachusetts (1)Evagrio Mosca Washington, D.C. [27]
1998Liu, Ricky|Ricky Liu, Massachusetts}} Wisconsin Washington, D.C. [28][29]
1999Loh, Po-Ru|Po-Ru Loh, Wisconsin}} Massachusetts (2)Evagrio Mosca Washington, D.C. [30]
2000Jia, Ruozhou|Ruozhou Jia, Illinois}} California (3) Washington, D.C. [31]
2001Ko, Ryan|Ryan Ko, New Jersey}} Virginia (2) Barbara Burnett Washington, D.C. [32]
2002Ni, Albert|Albert Ni, Illinois}} California (4) Thomas Yin Chicago, Illinois [33]
2003Hesterberg, Adam|Adam Hesterberg, Washington}} California (5) Pallavi Shah Chicago, Illinois [34]
2004Gauthier, Gregory|Gregory Gauthier, Illinois}} Illinois Steve Ondes Washington, D.C. [35][36][37]
2005Wu, Neal|Neal Wu, Louisiana}} Texas (1) Jeff Boyd Detroit, Michigan [38][39][40]
2006Yim, Daesun|Daesun Yim, New Jersey}} Virginia (3) Barbara Burnett Arlington, Virginia [33][41][42]
2007Chen, Kevin|Kevin Chen, Texas}} Texas (2) Jeff Boyd Fort Worth, Texas [43][44][45]
2008Wu, Darryl|Darryl Wu, Washington}} Texas (3) Jeff Boyd Denver, Colorado [46]
2009Shen, Bobby|Bobby Shen, Texas}} Texas (4) Jeff Boyd Orlando, Florida [47]
2010Sellke, Mark|Mark Sellke, Indiana}}California (6)Donna Phair[48] Orlando, Florida [49]
2011Wu, Scott|Scott Wu, Louisiana}} California (7) Vandana Kadam[50] Washington, D.C. [51]
2012Qian, Chad|Chad Qian, Indiana}} Massachusetts (3) Josh Frost Orlando, Florida
2013Sun, Alec|Alec Sun, Massachusetts}} Massachusetts (4) Josh Frost Washington, D.C.
2014Garg, Swapnil|Swapnil Garg, California}} California (8) David Vaughn Orlando, Florida
2015Liu, Kevin|Kevin Liu, Indiana}} Indiana (2) Trent Tormoehlen Boston, Massachusetts
2016Wan, Edward|Edward Wan, Washington}} Texas (5) Isil Nal Washington, D.C. [52]
2017Robitaille, Luke|Luke Robitaille, Texas}} Texas (6) Isil Nal Orlando, Florida [53]
2018Robitaille, Luke|Luke Robitaille, Texas}}Texas (7)Isil NalWashington, D.C. [54]

See also

  • Academic games
  • American Mathematics Competitions
  • List of mathematics competitions
  • Mathcounts historical results
  • Quizbowl
  • Reach for the Top

Notes and references

1. ^{{cite web|title=Board of Directors {{!}} MATHCOUNTS|url=https://www.mathcounts.org/about/board-of-directors|website=www.mathcounts.org|accessdate=5 August 2016}}
2. ^{{cite web|url=http://www.wyspe.org/mathcounts.html|title=Wyoming Society of Professional Engineers}}
3. ^{{cite web|url=http://www.prnewswire.com/cgi-bin/micro_stories.pl?ACCT=149999&TICK=RTN&STORY=/www/story/11-11-2005/0004214181&EDATE=Nov11,2005|title=Raytheon Takes on New Assignment: Helping Eva Make out with Thomas}}
4. ^About Mathcounts
5. ^{{cite web|url=http://mathcounts.org/Page.aspx?pid=1896|archive-url=https://web.archive.org/web/20120305014133/https://mathcounts.org/Page.aspx?pid=1896|title=Team Eligibility Rules Changes|year=2011|archive-date=2012}}
6. ^Mathcounts competition program
7. ^{{cite web|url=http://everything2.com/index.pl?node_id=492001|title=Everything2 – MathCounts}}
8. ^{{cite web|url=http://www.tutornext.com/new%20design/math_help_counts.html|title=Online Tutoring – Mathcounts description}}
9. ^{{cite web|url=http://www.mathcounts.org/webarticles/anmviewer.asp?a=99|title=Mathcounts Competition Components|publisher=Mathcounts|archiveurl=https://web.archive.org/web/20071103003442/http://www.mathcounts.org/webarticles/anmviewer.asp?a=99|archivedate=November 3, 2007}}
10. ^{{cite web|url=http://www.math.uci.edu/news/UCI_mathcounts06a_1.pdf|title=University of California – Two schools will represent Orange County in a state math competition to be held in March at UC Irvine}}
11. ^{{cite web|url=http://www.mnspe.org/mathcounts/compete.htm|title=Minnesota MATHCOUNTS|accessdate=2008-01-01 |archiveurl = https://web.archive.org/web/20070721014545/http://www.mnspe.org/mathcounts/compete.htm |archivedate = July 21, 2007}}
12. ^{{cite web|url=http://www.mathcounts.org/webarticles/anmviewer.asp?a=77&z=24|title=Sponsors|accessdate=2008-01-01 |archiveurl = https://web.archive.org/web/20071229120656/http://www.mathcounts.org/webarticles/anmviewer.asp?a=77&z=24 |archivedate = December 29, 2007}}
13. ^{{cite web|url=http://www.lalc.k12.ca.us/catalog/providers/153.html|title=Smart Catalog – MATHCOUNTS}}
14. ^{{cite web|url=http://www.ndmathcounts.org/rules/2008INSTRUCTIONS.doc|title=ND Mathcounts}}
15. ^{{cite web|title=Piedmont Mathcounts|url=http://home.triad.rr.com/nppenc/mathcounts.htm}}
16. ^{{cite web|url=http://www.gm.com/explore/education/news/2007/mathcounts_061907.jsp|title=General Motors Renews as National Sponsor of MATHCOUNTS}}
17. ^{{cite web|title=Yale MATHCOUNTS|url=http://www.yale.edu/opa/newsr/07-04-25-03.all.html}}
18. ^{{cite web|url=http://www.mathcounts.org/webarticles/anmviewer.asp?a=182&z=49 |title=Mathcounts – For Fun and Inspiration |accessdate=February 8, 2008 |publisher=Mathcounts |archiveurl=https://web.archive.org/web/20071230140005/http://www.mathcounts.org/webarticles/anmviewer.asp?a=182&z=49 |archivedate=December 30, 2007 |deadurl=yes |df= }}
19. ^{{cite web|url=https://georgewbush-whitehouse.archives.gov/news/releases/2005/05/images/20050512_p44871-068jpg-515h.html|title=President George W. Bush meets award recipients of the 2005 Mathcounts National Competition|accessdate=February 8, 2008|publisher=United States government}}
20. ^{{cite web|url=http://www.mathcounts.org/webarticles/anmviewer.asp?a=77&z=24|title=Sponsors|accessdate=January 1, 2008|publisher=Mathcounts |archiveurl = https://web.archive.org/web/20071229120656/http://www.mathcounts.org/webarticles/anmviewer.asp?a=77&z=24 |archivedate = December 29, 2007}}
21. ^Mathcounts was actually founded in 1982, but the current system of determining individual and team champions was not implemented until 1984.
22. ^{{cite web|url=http://www.vspe.org/images/MATHCOUNTS%20WINNERS.pdf|title=Mathcounts Winners|accessdate=February 10, 2008|publisher=Virginia Society of Professional Engineers}}
23. ^Gene Spafford. Brainy Teen 'Mathcounts' Champ. Yucks Digest. Vol. 2 No. 32. June 13, 1992.
24. ^{{cite web|url=http://stat.wharton.upenn.edu/~mfreiman/DateList.htm|title=Date List|accessdate=February 7, 2008|publisher=University of Pennsylvania|archiveurl=https://web.archive.org/web/20070212174440/http://stat.wharton.upenn.edu/~mfreiman/DateList.htm|archivedate=February 12, 2007}}
25. ^{{cite web|url=http://www.kyengcenter.org/Mathcounts/winnersoveryears.pdf|title=It's A Fact!|accessdate=February 7, 2008|publisher=Kentucky Engineering Center|archiveurl=https://web.archive.org/web/20090320001938/http://www.kyengcenter.org/Mathcounts/winnersoveryears.pdf|archivedate=March 20, 2009}}
26. ^{{cite web|url=http://www.mathematicallycorrect.com/letter.htm|title=Mathematically Correct|accessdate=February 7, 2008|publisher=Mathematically Correct}}
27. ^{{cite web|url=http://www.nasa.gov/home/hqnews/1997/97-090.txt|title=Mathletes Compete In Washington On May 9|publisher=NASA.gov|accessdate=February 7, 2008}}
28. ^{{cite web|url=http://www.nasa.gov/home/hqnews/1998/98-079.txt|title=Mathletes Compete In Washington On May 15|publisher=NASA.gov|accessdate=February 7, 2008}}
29. ^{{cite web|url=http://dimacs.rutgers.edu/drei/mailing-archive/96/0790.html|title=Email, Subject "Math"|accessdate=February 7, 2008|publisher=NASA}}
30. ^{{cite web|title=1999 Diamond Team|url=http://diamond.lexingtonma.org/mathteam/mathcounts99.html|accessdate=February 7, 2008|publisher=William Diamond Middle School}}
31. ^{{cite web|url=http://www.kyengcenter.org/Mathcounts/2000nationalwinners.htm|title=Kentucky Results: 2000 National Mathcounts Competition, May 12, 2000 – Omni Shoreham Hotel – Washington D.C.|accessdate=February 7, 2008|publisher=Kentucky Engineering Center|archiveurl=https://web.archive.org/web/20080515232841/http://www.kyengcenter.org/Mathcounts/2000nationalwinners.htm|archivedate=May 15, 2008}}
32. ^{{cite web|url=http://www.vspe.org/edu__math_challenge.htm|title=2001 Mathcounts Competition Gives Them A Challenge|accessdate=February 7, 2008|publisher=Virginia Society of Professional Engineers}}
33. ^{{cite web|title=New Jersey Mathcounts|url=http://www.mathcounts-nj.org/|accessdate=February 7, 2008|publisher=New Jersey Mathcounts}}
34. ^{{cite web|url=http://www.kyengcenter.org/Mathcounts/2003NationalMCResults.htm|title=Mathcounts 2003 National Results|accessdate=February 7, 2008|publisher=Kentucky Engineering Center|archiveurl=https://web.archive.org/web/20080515111310/http://www.kyengcenter.org/Mathcounts/2003NationalMCResults.htm|archivedate=15 May 2008}}
35. ^The students stayed at the national Mathcounts location between May 6 and May 9, with the actual competition taking place on May 7.
36. ^{{cite web|url=http://www.kyengcenter.org/Mathcounts/2004NationalMCResults.htm|title=Mathcounts 2004 National Results|publisher=Kentucky Engineering Center|accessdate=February 11, 2008|archiveurl=https://web.archive.org/web/20090107023308/http://www.kyengcenter.org/mathcounts/2004NationalMCResults.htm|archivedate=January 7, 2009}}
37. ^{{cite web|title=2004 National Mathcounts Champion|url=http://sections.asme.org/hawaii/math2004n.htm|accessdate=February 7, 2008|publisher=Kentucky Engineering Center}}
38. ^The students stayed at the national Mathcounts location May 5 and May 8, with the actual competition taking place on May 6.
39. ^{{cite web|url=http://www.les-state.org/brchapter/Mathcounts.htm|title=Louisiana Mathcounts|publisher=Louisiana Engineering Society Baton Rouge Chapter|accessdate=February 7, 2008}}
40. ^{{cite web|title=Sugar Land Kids Won 2005 Mathcounts National Champions|url=http://www.beestar.org/news/news050518.jsp|accessdate=February 7, 2008|publisher=Beestar Educations}}
41. ^The students stayed at the national Mathcounts location May 11 and May 14, with the actual competition taking place on May 12.
42. ^{{cite web|url=http://sections.asme.org/hawaii/2006mathnat.htm|title=2006 National Mathcounts Competition|accessdate=February 7, 2008|publisher=American Society Of Mechanical Engineers}}
43. ^The students stayed at the national Mathcounts location May 10 and May 13, with the actual competition taking place on May 11.
44. ^{{cite web|title=Kevin Chen, Mathcounts National Champion, Wins Best Junior Achiever Relly Award from Live with Regis and Kelly|url=http://eon.businesswire.com/releases/Mathcounts/relly/prweb555883.htm|accessdate=February 7, 2008|publisher=Business Wire}}
45. ^{{cite web|url=http://www.prnewswire.com/cgi-bin/stories.pl?ACCT=104&STORY=/www/story/05-11-2007/0004586749&EACCESSDATE=|title=Texas Eighth Grader and Texas Team Awarded Mathematics Champions at Lockheed Martin Mathcounts National Competition – 2007|accessdate=February 7, 2008|publisher=PR Newswire}}
46. ^{{cite web|url=http://www.mathcounts.org/webarticles/anmviewer.asp?a=185&z=53|title=Mathcounts 2007–2008 important dates|accessdate=February 7, 2008|publisher=Mathcounts|archiveurl=https://web.archive.org/web/20080315203737/http://www.mathcounts.org/webarticles/anmviewer.asp?a=185&z=53|archivedate=March 15, 2008}}
47. ^{{cite web|url=http://mathcounts.org/Page.aspx?pid=1336|title=2009 Raytheon Mathcounts National Competition Results|accessdate=June 25, 2011}}
48. ^https://docs.google.com/viewer?a=v&pid=sites&srcid=ZGVmYXVsdGRvbWFpbnxzYW50YWNsYXJhdmFsbGV5bWF0aGNvdW50c3xneDo0NmUwMjFmYzkyZmU4ZGJl
49. ^{{cite web|url=http://mathcounts.org/Document.Doc?id=520|title=2010 Raytheon Mathcounts National Competition|accessdate=June 25, 2011}}
50. ^{{cite web|url=https://docs.google.com/viewer?a=v&pid=sites&srcid=ZGVmYXVsdGRvbWFpbnxzYW50YWNsYXJhdmFsbGV5bWF0aGNvdW50c3xneDozMzkyNzQyYjgwZjFiN2Y1|title=2011NorCalTopTeams.pdf|publisher=}}
51. ^{{cite web|url=http://www.mediafire.com/?csd4zv7b0rwlv22|title=2011 Raytheon Mathcounts National Competition|accessdate=June 25, 2011}}
52. ^{{cite web |url= https://www.mathcounts.org/sites/default/files/u1706/2016%20National%20Final%20Standings.pdf|title= 2016 Raytheon Mathcounts National Competition |accessdate= Nov 30, 2018}}
53. ^{{cite web |url= https://www.mathcounts.org/sites/default/files/u49/2017%20National%20Final%20Standings.pdf |title= 2017 Raytheon Mathcounts National Competition |accessdate= Nov 30, 2018}}
54. ^{{cite web|url=https://www.mathcounts.org/sites/default/files/u1706/2018%20National%20Final%20Standings.pdf|title=2018 Raytheon Mathcounts National Competition|accessdate=November 30, 2018}}

External links

  • Mathcounts Home Page
  • Large Mathcounts Forum for students and teachers
  • White House Photos: [https://georgewbush-whitehouse.archives.gov/news/releases/2001/05/images/mathcounts.html 2001], [https://georgewbush-whitehouse.archives.gov/news/releases/2005/05/images/20050512_p44871-068jpg-515h.html 2005], [https://georgewbush-whitehouse.archives.gov/news/releases/2006/05/images/20060515-1_p051506pm-0142-515h.html 2006], 2007, [https://georgewbush-whitehouse.archives.gov/news/releases/2008/07/images/20080715-1_d-0295-6-515h.html 2008], 2009, [https://obamawhitehouse.archives.gov/blog/2010/06/29/2010-mathcounts-winners-visit-president-obama 2010]

3 : Mathematics competitions|Recurring events established in 1984|1984 establishments in the United States

随便看

 

开放百科全书收录14589846条英语、德语、日语等多语种百科知识,基本涵盖了大多数领域的百科知识,是一部内容自由、开放的电子版国际百科全书。

 

Copyright © 2023 OENC.NET All Rights Reserved
京ICP备2021023879号 更新时间:2024/11/10 11:41:52