Harold Reiter

Professor of Mathematics
University of North Carolina at Charlotte

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Contact Information

Department of Mathematics
University of North Carolina at Charlotte
9201 University City Blvd.
Charlotte, NC 28223-0001
Office: Fretwell 345A
Office Hours for Fall 2008:
Monday and Wednesday mornings, 8:45-10:30 and by appointment

Telephone: (704)-364-5699 home
          (704) 687-4561 office
FAX: (704) 687-6415
Electronic Mail: hbreiter@uncc.edu

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Index to this web site:

• Math 1120, Business Calculus (Spring 2009, Sections 6 and 7. Section 6 meets at 9:30am. TTh, Fretwell 128 and section 7 meets at 12:30 pm. MW, Fretwell 128)

• I am excited about leading a seminar for the Charlotte Teachers Institute entitled Understanding Fundamental Ideas in Mathematics at a Deep Level. The seminar will meet a few times before the summer break and then weekly starting in September.

• The Charlotte Teacher’s Circle began in September 2006 for high school and middle school teachers. It meets once or twice each month. We're a part of a national network of teacher circles.
• Registration form for 1960 C. E. Byrd High graduates.
• Buy my book The Contest Problem Book VII for $43.95 (MAA Member price. $35.50). You can buy it from the MAA or at The Art of Problem Solving Website
• American Mathematics Competitions AMC 8, AMC 10, and AMC 12
• Other Current Activities
• Mathematical Things to do
• Websites of Mathematical Organizations
• Websites of Mathematical Interest
• Websites with Mathematical Problems
• The UNC Charlotte Math Competition
• Summer Opportunities for Pre-College Students
• Mathematics and other programs for university students
• Newspapers and other web sites of general interest
• Websites of Philatelic Interest
• General Information about me

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Other Current Activities

• I founded and currently volunteer at meetings of The Charlotte Math Club
• I founded and currently volunteer at meetings of The Mecklenburg Math Club
• My daughter Ashley Ahlin and I have agreed to co-edit the problems section of The Pi Mu Epsilon journal. Your undergraduate level problems are hereby solicited.

• Fall 2004 Problems.
• Spring 2005 Problems.
• Fall 2005 Problems.
• Spring 2006 Problems.
• Fall 2006 Problems.
• Spring 2007 problems.
• Fall 2007 problems.
• Spring 2008 problems.
• Fall 2008 problems.
• Spring 2009 problems.
• Fall 2009 problems. Deadline for solutions, October 1, 2009

• The North Carolina AMC homepage
• The UNCC Math Contest.
• A paper by Dan Kennedy that pretty well sums up the way I feel about teaching and testing. It appeared recently in Mathematics Teacher
• Papers I wrote from August 2000 to August 2001 about teaching and learning. Its mainly intended for Math 1100 students, but also applies to other classes My philosophy of teaching, part 1 and
  My philosophy of teaching, part 2
• I have recently taught the following courses:
• Math 1100, College Algebra (Fall 1999; Spring 2000; Fall 2000; Fall 2001; Fall 2002; Fall 2007 online course )
• Math 1102, Introduction to Mathematical Thinking, (Spring 2002; Fall 2006)
• Math 1120, Business Calculus (Spring 2002; Spring 2003; Summer 2003; Spring 2004; Summer 2005; Spring 2006; Fall 2006; Spring 2007; Fall 2007; Spring 2008; Fall 2008, Spring 2009, sections 6 and 7)
• Math 1165, Discrete Math (Fall 2002; Spring 2003, Fall 2005; Spring 2007)
• My course Introduction to Number Concepts is an online Blackboard-Vista course. Students can access the content material at Number Concepts
• Math 1241, Calculus 1 (Spring 2004)
• Math 1242, Calculus 2 (Fall 2004, Spring 2005, Fall 2005, Spring 2006)
• Math 3166, Combinatorics (Spring 1999)
• Math 6105, Problem Solving in Discrete Mathematics Summer Workshop in Discrete Math for CMS Teachers, summers, 2001-2006.
• Combinatorial Games, (Summers, 1992, 93, 94, 95, 96, 97, 99) Summer Ventures in Science and Math

• I completed my term as past president of the National High School and Two-year College Honor Society (after serving as president for the two years 2001-2003) in July 2004  Mu Alpha Theta. I thoroughly enjoyed representing MAO at the International Science and Engineering Fair ISEF in May 2004. For a picture of me with the 2004 ISEF-MAO Scholarship winner, Andrew "Drew" Matteson of Amarillo, TX, click here
• In 2005 I wrote the Autumn Math Challenge, a contest for college in the Midwest. Click here to access the scores and here to access the test. The solutions are here.
• In 2006 Arthur Holshouser and I wrote the Autumn Math Challenge, a team contest for undergraduates in the Midwest. Click here to access the scores and the ranking. Click here to access the test. The solutions are here.
• The website Johns Hopkins/ CTY webmagazine Cogito recently interviewed me.
• You can access my problems published in the Sunday (London) Times Problems
• In May 2003, and again 2005, 2007 and 2008, I was appointed to the Presidential Awards Selection Committee.
• In July 2003, I was appointed to the College Board CLEP Mathematics Committee.
• In August 2002, I was awarded the Paul Erdos Award by the World Federation of National Mathematics Competitions at its biennial meeting. The WFNMC brings together mathematicians who use mathematical problems and challenges to stimulate learning at the pre-college level. For pictures I took on my August 2002 trip, check Australia Trip
• In June 2005, Betty and I took a Grand Circle Cruise of the lower Danube from Constanta, Romania to Budapest, Hungary where we met our daughter and her family. The cruise pictures are at Cruise2005
• I completed my second term as a MathCounts question writer and as chair of the QWC in 2003-2004. In 2008 I was appointed to be one of seven judges. The judges are responsible, among other things, for the masters round at the nationals.
• I have served on the State (of NC) Contest Committee for many years.
• I completed my duties as chair of the AMC 12 (and AMC 10 for 2000) Contest in 1999. See American Math Competitions. I still serve on several panels of the AMC.
• I completed my term as the chair of SAT II Mathematics committee of the Educational Testing Service in August 1999. I have been a 'Reader' for the AP Calculus papers in 1978. To find out more about the College Board and ETS, see their websites. I especially enjoyed the 2004 reading. Click here for two photos taken at the reading in Fort Collins, CO. The whole table of readers and just me.
• I am currently serving on the ETS/College Board CLEP (College-Level Examination Program) Pre-calculus Committee, Sept 2002-present.
• In my spare time I like domestic and international travel, jogging, racket sports, staring at Stereograms from Magic Eye. And Optical Illusions. Also, I like playing mathematical games like SET, chess, and bridge.
• I presented My Favorite Problems at the 27th annual meeting of the American Mathematical Association for Two-Year Colleges in Toronto, Canada, in November 2001. For a copy of the problems with their solutions, see My Favorite Problems.
• I have begun writing a regular column called My Favorite Problems in the Journal Mathematics and Informatics Quarterly.
• During the summer of 2000, my daughter and I gave a workshop at Iolani School for MathCounts coaches.
• I organized a collection of three minicourses and workshops for the annual NCTM, April 5-7, 2001.
• My research papers since 1989.

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American Mathematics Competitions

• The North Carolina AMC homepage
• The American Mathematics Competitions.
• For a paper by about the history of the American High School
  Mathematics Exam and the new (February, 2000) AMC 10, see
  The American High School Mathematics Examination: A 50 year Retrospective.
• The following exams were produced by the AHSME committee during the years 1994-2000 of my chairmanship.
• 50th Anniversary AHSME consisting of one problem from each of the first 50 years of the exam.
• A sample of the AMC 10 contest that started February 2000.
• The 1995 AHSME and The 1995 AHSME Solutions
• The 1996 AHSME and The 1996 AHSME Solutions
• The 1997 AHSME and The 1997 AHSME Solutions
• The 1998 AHSME and The 1998 AHSME Solutions
• The 1999 AHSME and The 1999 AHSME Solutions
• The 2000 AMC10 and The 2000 AMC10 Solutions
• The 2000 AMC12 and The 2000 AMC12 Solutions
• The 2001 AMC12 and The 2001 AMC12 Solutions
• The 2001 AMC10 and The 2001 AMC10 Solutions
• My wife Betty and I enjoyed very much our work on the IMO2001 Local Arrangements Committee. See IMO 2001 hosted by the United States July 1 to July 14 in Washington DC and at George Mason University.

Mathematical Things to do

• A great website with lots of interesting stuff: Planet Math
• Here's a website with some cute problems well done by Jason Batterson.
• Problems by Nick Hobson.
• A great website for learning mathematics and mathematical humor
• Interactive Mathematics Miscellany and Puzzles
• Natural Math
• A great way to learn trigonometry
• Jim Propp's SELF-REFERENTIAL APTITUDE TEST
• Kevin Brown's great website of mathematical papers MathPages
• Daniel Scher's Java Sketchpad Page
• John Rausch's website
• David Levine's site for Game Theory
• Jeff Erickson's Games Website
• Combinatorial Game Theory
• Websites for Combinatorial Games Combinatorial Games Page
• Roger A. McCain's Strategy and Conflict: An Introductory Sketch of Game Theory
• Martin J. Osborne's What Is Game Theory?
• Does .999...=1?
• Can you figure out how this works? Fido Challenge.
• Can you figure out how this works? The Mind Reading Crystal Ball.

Websites of Mathematical Organizations

• I highly recommend The Art of Problem Solving
• The Mathematical Association of America
• The American Math Society's E-math
• For an index of US Universities University Home Pages
• The World Federation of National Mathematics Competitions for mathematicians who use mathematical problems and challenges to stimulate learning at the pre-college level.
• NRich from the UK has some great problems for middle and elementary students.
• Page for undergraduate opportunities.
• The North Carolina Council of Teachers of Mathematics NCCTM
• The National Council of Teachers of Mathematics NCTM

Websites of Mathematical Interest to Students and Teachers

• I highly recommend The Art of Problem Solving including the online courses.
• MathPro Press has an incredible index of published problems.
• United Kingdom Mathematics Trust
• Simon Singh's Website is full of interesting mathematical ideas.
• A great site for high school and undergraduate level problems by Nick Hobson.
• The High School and Two-year College Honor Society Mu Alpha Theta.
• The Mathematics Forum at Swarthmore
• At UNC Charlotte, I directed and taught in the program Summer Ventures in Science and Math, a state (of NC) funded four week residential program for high school juniors and seniors.
• Mathematics On Stamps, Philamath
• Jim Kuzmanovich's Math and Mathematicians on Stamps
• The North Carolina SDPI math website and calendar of events
• The US Department of Education's list of Math related web sites
• The North Carolina School of Science and Mathematics is a two year residential magnet high school for science and mathematics.
• Canadian Mathematical Society's KaBoL
• Financial Aid Information for college students.
• Index to Mathematicians Biographies
• Mega Mathematics
• Letter to parents of home-schooled kids by Vicky Kaseorg.

Websites with Mathematical Problems

• I highly recommend The Art of Problem Solving including the online courses.
• Geometry Step by Step from the Land of the Incas by Antonio Gutierrez. This is a lovely award-winning website.
• The National High School and Two-year College Honor Society Mu Alpha Theta.
• The UNCC Math Contest. If you have Adobe Acrobat Reader, you can see each of the past seven years contest problems. The entire database of problems is available. See EducAide Software web site.
• Math Competitions Archive is a great network of Olympiad and Putnam problems, maintained by Kiran Kedlaya
• A great site for high school and undergraduate level problems by Nick Hobson.
• Results and Problems from recent International Math Olympiads .
• The Virginia Tech Regional Mathematics Contest Competitions Archive has problems and solutions for most of its years of existence.
• Results and Problems from recent South African Mathematics Olympiad .
• John Scholes' Problems Website including university problems from the Putnam, IMO, and Eotvos competitions.
• You can access my problems published in the Sunday (London) Times Problems.
• International Math Talent Search
• Wisconsin Math Talent Search contains problems from the WMTS program.
• Great Plains Math League contains problems from the GPML program.
• For more problem sites see Math contests for high school and pre-high school students below

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Websites with Mathematical Problems for younger problem solvers

• Math Stories for Children
• Word Problems at Francis Xavier University in Canada has a very interesting collection of word problems for grades 5-12.
• International Math Talent Search contains problems from the IMTS program.
• MathCounts for students in grades 7 and 8.
• MathPath for students in grades 6 through 8.
• Math Olympiad for Elementary Schools for students in grades 4-6.
• Online Math Help
• Brain Teasers - grades 3-8.
• Mastery of skills - games - strategy building
• Cyber challenge - daily brains - grades 3-8.
• Hot topics - ex. Math Olympics activities and materials - membership information.
• Problem of the Week - interactive - help pages - all topics.
• "Mudd Math Fun Facts" - enrichment - upper elementary plus.

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Websites of Recommended Periodicals for High School and College Students

• New Electronic Mathematics Journal for Undergraduates.
• Pi Mu Epsilon Mathematics Journal for Undergraduates.
• Quantum Magazine A wonderful magazine for high school and college students with an interest in mathematics.
• Imagine Magazine for gifted students is published at  Johns Hopkins.
• Furman University's Electronic Journal of Undergraduate Mathematics
• Crux's Mathematical Mayhem
• Mathematics and Informatics Quarterly

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Math and Science Competitions for high school and pre-high school students.

• Here's a short introduction to contests around the world.
• American Mathematics Competitions   for students in grades 6-12
• MathCounts for students in grades 7 and 8
• Math Olympiad for Elementary Schools for students in grades 4-7
• Tournament of Towns for high school and advanced middle school students. These are gorgeous problems.
• Mandlebrot for high school students
• American Regions Mathematics League for high school students
• USA Math Talent Search for high school students
• The UNCC Super Competition, which includes the
• The UNCC Math Contest. The entire database of problems is available. See EducAide Software web site. If you have Adobe Acrobat Reader, you can see each of the past four years contest problems
• Math Science Weekend at the College of Charleston
• The Furman University Math Tournament Website
• The State (of NC) High School Math Contest
• The University of Queensland Math Competitions
• Youngstown State University Problem Solving Sessions
• Western (NC) Runoff Contests at the UNC Asheville
• Wisconsin Mathematical Talent Search
• International Competitions
• HIMCM
• For a great network of Olympiad and Putnam problems, maintained by Kiran Kedlaya Math Competitions Archive
• The State (of NC) Competition Newsletter
• The International Tournament of Towns
• The Clay Mathematical Institute
• Promath at University of Kentucky
• Odyssey of the Mind
• Quiz Bowl

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Math and Science Competitions Scholarship Opportunities for High School Students.

• Intel (formerly Westinghouse) Science Talent Search and
• The new Westinghouse Science Talent Search sponsored by Siemens Foundation
• The Davidson Foundation sponsors the Davidson Fellows Program recognizing extraordinary talent development
• The Clay Mathematics Institute Olympiad Scholar Program and Clay Research Academy

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Summer Opportunities for Pre-College Students

• Science Services Student and Teacher Program Index
• American Math Society Index to Research Experience for Undergraduates Summer Programs
• Summer Math Camps and Programs for High School Students
• Summer Ventures in Science and Math is a state (of NC) funded four week
  residential program for high school juniors and seniors.
• The Johns Hopkins CTY and SET programs
• United States of America Mathematical Olympiad(USAMO)
• Anders Kaseorg's unofficial Moppers Website
• Duke University's TIP program
• Boston University's highly acclaimed Program in Mathematics for Young Scientists PROMYS
• The Arnold Ross Summer Program at Ohio State
• Hampshire College Summer Program HCSSIM
• Math Camp
• The Research Science Institute RSI
• The United States Computing Olympiad USACO
• The International Physics Olympiad IPO
• The International Chemistry Olympiad ICO
• Lots of great ideas at SIAM
• The Northwestern University CTD program
• The Earthwatch Institute
• Oxbridge Academic Programs Quest Scholars Program at Harvard and
• The Quest Scholars Program at Stanford.

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Opportunities for College Students

• Pi Mu Epsilon is a wonderful organization that promotes mathematics at the undergraduate level.
• Budapest Semesters in Mathematics. This is a terrific semester- or year-long program for college students.
• MATHEMATICS ADVANCED STUDY SEMESTERS MASS
• Summer program for women at George Washington University.
• The Carleton/St. Olaf Colleges Summer Mathematics Program for Women

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Websites of Philatelic Interest

• CHARPEX, The annual Stamp Expo sponsored by my club the Charlotte Philatelic Society and the Fortnightly Collecting Club
• American Philatelic Society website
• Stamp Paradise
• Todd Uebele's
• Charlotte Philatelic Society
• Downeast Stamps, Bangor Maine.
• Mathematical Study Unit, Philamath
• Jim Kuzmanovich's Math on Stamps
• On-Line Auctions
• Linn's Stamp News
• Robert Siegel Auctions
• Stamps OnLine
• Net Stamps
• Internet Auctions
• Eric Jackson's Revenues
• Stamp Albums.Com
• US Bureau of Engraving and Printing
• Ken Barr's Souvenir Card List
• Greg Manning's Home Page
• Philatelic Books
• Andrew Levitt's website
• Stamp Prof.
• About Collecting
• Excite's Philatelic websites
• US Stamp SocietyPhilatelic.COM
• UPU Website
• stampalbums.com
• stampstore.org
• zillionsofstamps.com zillionsofstamps
• A great site hosted by Charlottean Dick Sine
• Country Collections, which has a great glossery, http://glossary.usstamps.org/

General Information about me

o I'm very proud of my daughter Ashley Reiter Ahlin who received her PhD. at University of Chicago in June 2002 working in the area of Geometric Algebra. She lives in Nashville near Vanderbilt University where her husband Chris is an assistant professor of Economics. I maintain a list of articles by and about Ashley at http://www.math.uncc.edu/~hbreiter/ashley.htm

o Check out my grandsons Peter Rigsbee Ahlin, born June 24, 2006 and John Ahlin. Here're others taken in March 2009: Peter, John, AshleyPeterJohn.

o To see an extensive vita, click here

o Schools I've attended:

I attended Lafayette High until the 12th grade.

§ C.E. Byrd High, Shreveport, LA, 1960;

§ Louisiana State University, BS., Mathematics, 1964;

§ Clemson University, MS., Mathematics, 1965;

§ University of North Carolina at Chapel Hill, 1965-1966;

§ Clemson University, Ph.D., Mathematics, 1969.

o My Erdos number Erdos, Istvan Vincze, George Csordas, me.

o Courses Taught at UNCC:

o Favorites: Combinatorics, Graph Theory, Discrete Structures;

o Commonly taught courses: Calculus I, Calculus II, Business Calculus, College Algebra;

o Summer Ventures in Science and Math: Combinatorial Games;

o Summer Workshop in Discrete Math for Teachers

o Research Interests

§ Combinatorial Games;

§ Mathematics Education,

§ The use of problems and challenges to stimulate mathematics learning.

o To get in touch with me. ..
Harold B. Reiter
Department of Mathematics
Univ. of North Carolina Charlotte
Charlotte, NC 28223
Phone: 704-687-4561, home: 704-364-5699
Fax: 704-687-6415
email: hbreiter@uncc.edu

o Checking Email from a distance

o UNC Charlotte Math Department Home Page

o UNC Charlotte Homepage

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· Last updated April, 2009 by Harold Reiter