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# User:Terrel Trotter, Jr.

Terry (Terrel) Trotter, Jr. was born 1941 in Kansas. In 1955, he was severely struck by polio, and he got around in an electric wheelchair from then on. In 1965, he graduated from Southwestern College, a small 4-year college in south-central Kansas, and he began teaching math and social studies in small towns.

In 1981 he moved to El Salvador to work at the Escuela Americana in San Salvador.

He passed away at September 29th, 2004: see *Tribute to Terry Trotter - A true Pythagorean - a Mathematikoi - a wonderful sharing and loving person*, by T. Marsh.

Terrel Trotter maintained a website **trottermath.net** called *The World of TROTTER MATH* (WTM) which is still active, but it seems to be abandonned after 2011, and hacked in 2017. The site had many mathematical articles. He defined several OEIS sequences, and more than 30 OEIS sequences link to his articles.

- In order to make the WTM accessible again, I created a copy with the HTML files from the Internet archive of 2004/2005, and the images from the current (WordPress based and hacked) site. The copy should be clean. I even removed malicious links in Terry's files of 2004. You may access the WTM by Terry's original files
**index.html**, the contents.html, links.html, and a new file hidden_contents.html. Furthermore, I stored the whole directory structure of this restored WTM in trottermath.net.zip. --Georg Fischer (talk) 14:43, 7 April 2018 (EDT)

## Published Articles

- "More About P = N
^{2}+ M^{3}". Journal of Recreational Mathematics, 4(1), January 1971, pp. 45-49. - "Number Patterns from Digit Sums". The ARITHMETIC TEACHER, 18(2) February 1971, pp. 100-103.
- "Polynomial Functions and Vanishing Triangles". Bulletin of the KATM, February 1971, p. 20.
- "Magic Triangles of Order n". JRM, 5(1), January 1972, pp 28-32.
- "Five Non-trivial Number Games". The ARITHMETIC TEACHER, 19(7), November 1972, pp. 558- 560. (Reprinted in Games and Puzzles for Elementary and Middle School Mathematics: Readings from the ARITHMETIC TEACHER, NCTM, 1975, pp.148-150)
- "Some Identities for the Triangular Numbers". JRM, 6(2), Spring 1973, pp. 127-135.
- "Perimeter-Magic Polygons". JRM, 7(1), Winter, 1974, pp. 14-20. (Abstracted in ZENTRALBLAT FUR MATHEMATIC, Berlin, Germany)
- "Kaprekar". Math Lab Matrix, Fall 1976. p. 8.
- "Back-to-Front Multiplication". The Oregon Mathematics Teacher, February 1978, pp. 22-27.
- "A Reader Reacts". TOMT, March 1978. p. 28.
- "Phone Number Equations". The Illinois Mathematics Teacher, September 1978, pp.27-28. (Also TOMT, May 1979, p.19.)
- "Distinct-Digit Squares: A Calculator Activity". TOMT, September 1978, pp. 16-19.
- "Almost Magic Squares". TOMT, October 1978, pp.
- "Celebrating 1980 with Pythagoras". TOMT, January 1980, p. 12- 13, 19.
- "Number Bracelets: A Study in Patterns". The ARITHMETIC TEACHER, 27(9) May 1980, pp. 14-17.
- "Product Dates". [in the FROM THE FILE feature] The ARITHMETIC TEACHER, October 1983, p. 53. [referenced in Mathematical Challenges for the Middle Grades, William D. Jamski. NCTM, 1990, p. 35.]
- "Calculator Poker". MATHEMATICS TEACHING in the MIDDLE SCHOOL, 3(5) February 1998, pp. 366-368.
- "Yppy's Year of Life: A Problem for the New Year". Ohio Journal of School Mathematics. Spring 1998; #38 pp. 2-3.
- "Keith Numbers". OJSM, Spring 1998, #38. p. 23.
- "The M.O.M. Game ("Matching Our Multiples"): LCM's via the Calculator". OJSM, Winter 1999, #39. pp. 14-16.
- "The Thinking of Students: The 100th Letter". MATHEMATICS TEACHING IN THE MIDDLE SCHOOL. 5(4); Dec. 1999. pp. 258-262.
- "Let's Take Another Look At Pi Day". MATHEMATICS TEACHING IN THE MIDDLE SCHOOL. 7(7); March 2002. pp. 374-375.

### Source

Most of this information was taken from Terrel Trotter's web site WTM.