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Richard Grassl , Ph.D.

Professor

Contact Information

• Phone: (970) 351-2380
• Email: richard.grassl@unco.edu
• Office: Ross Hall 2239-H
• Fax: (970) 351-1225

Education

• Ph.D., Mathematics, University of New Mexico (1974)
• MS, Mathematics, University of Oregon (1967)
• BA, Mathematics, Santa Clara University (1965)

Talks

• MAA-RM 2010 Meeting (April 16–17, 2010, CSU): PDF, PowerPoint.

Juried Publications

Papers 5 – 16 are coauthored with T. Mingus, a mathematics educator at Western Michigan University. 

1. Impact of proof validations on proof writing in abstract algebra (R. Powers, C. Craviotto) accepted November 2009 by IJMEST.
2. Enumeration of rectangles in a tableau shape (T. Mingus, R. Diaz, L. Andrew, F. Parker) accepted October 2009 by the NCTM publication The Mathematics Teacher.
3. The UNC Mathematics Contest: Learning – Growing – Bonding, appeared November 2007, FOCUS, an MAA Publication Vol 27, #8 p12-13 
4. A study of the use of a handheld computer algebra system in discrete mathematics (with R. Powers, D. Allison), Inter. J. for Technology in Mathematics Education, 2006, Vol 13, No1, pp 103-114. 
5. Team teaching and cooperative groups in abstract algebra, accepted May 2005, Inter.  J. of Mathematical Education in Science and Technology, Vol 38, No 5, Jan 2007, pp 581-597.
6. Cyclotomic polynomial factors, The Mathematical Gazette, Vol., 89, July 2005 pp.195-201.
7. On the shoulders of technology: Calculators as cognitive amplifiers, International Journal of Mathematical Education in Science and Technology, September – October 2002, Vol. 33, No. 5, 715-723.
8. Nurturing The Mathematically Gifted – Brian’s Story, 2001 Research  Briefs of the National Association for Gifted Children, pp 36-46. 
9. Peak numbers, The Mathematical Gazette, Vol. 86, March 2002, pp44-50.
10. Preservice teacher beliefs about proofs, School Science and  Mathematics, Vol. 99  No. 8, December 1999, pp 438-444.
11. What constitutes a nurturing environment for the growth of mathematically gifted students?, School Science and Mathematics, Vol. 99, No.6, October 1999 pp 286-293.
12. Discrete mathematics retooled,  Mathematics and Computer Education, Winter 1999 Vol.33. No. 1, pp 16-26.
13. Using technology to enhance problem solving and critical thinking skills, Mathematics andComputer Education, Fall 1997, Vol 31, No. 3 pp 293-300.
14. Nurturing growth of young mathematicians through mathematics contests, Chapter 32 in the 1999 NCTM book Developing Mathematically Promising Students.
15. Keep counting those boxes, there’s more, Mathematics Teacher, February 1998, Vol 91, #2, pp 122-127.
16. Algorithmic and recursive thinking: current beliefs and their implications for the future, Chapter 4 in the 1998  NCTM Yearbook on Algorithms.
17. Counting tile patterns,  Mathematics Teacher (NCTM) Vol 89, No 1, January 1996, pp 8-1.
18. The squares do fit,  The Mathematical Gazette, Vol 79, July 1995, pp 361-364.
19. Equivalence classes and a familiar combinatorial identity (with T. Mingus), The Mathematical Gazette, March 1998 issue, Vol 82, #493.
20. Lattice paths to hyperplanes (with K. Johnson),  Expositiones Mathematicae, 11 (1993), 419-431.
21. Where have you seen n(n-1)/2 before? (with Robert Lochel), the Mathematical Gazette, Vol. 76, Nov. 1992, pp. 378-389.
22. Pascalian rectangles modulo-m (with K. Johnson, Joseph McCanna, and L. A. Székely), Quaestiones  Mathematicae, 14 (1991), pp. 383-400.
23. Euler numbers and skew hooks, Mathematics Magazine, Vol. 66, No. 3, June, 1993, pp. 188.
24. Composition of positive integers (with K. Johnson and R. Vickrey), Mathematics Teacher,Vol. 84, No. 3, March 1991, pp. 228-233.
25. Hook and shifted hook numbers (with A. P. Mullhaupt), Discrete Mathematics 79 (1989/90), pp. 153-167.
26. Enumerating 3 by 3 N-matrices with given row and column sums (with A. P. Hillman), Congressus Numeratium, December 1986, pp. 103-108.
27. Reverse plane partitions and tableau hook numbers.  Reprinted in Young Tableaux inCombinatorics Invariant Theory and Algebra, pp. 23-28, an Anthology, edited by Joseph P. S. Kung, Academic Press,1982.
28. Slicing skew-tableau frames with (A. Hillman), European Journal of Combinatorics, 3 (1982), pp. 143-151.
29. Self-generating sequences, The Fibonacci Quarterly, Nov. (1982), Vol. 20, No. 4, pp. 299-310.
30. Polynomial ring generated by tableau shapes (with A. Hillman), European Journal ofCombinatorics, 2 (1981), pp. 27-39.
31. Skew tableau and the insertion algorithms (with A. Hillman),Journal of Combinatorics, Information and  System Sciences, Vol. 5, No. 4, 1980, pp. 305-316.
32. Functions on tableau frames (with A. Hillman), Discrete Mathematics 25 (1979), pp. 245-255.
33. Polynomials in denumerable indeterminates, Pacific Journal of Mathematics, Vol. 97, No. 2, 1981, pp. 415-423.
34. Multisectioned partitions of integers, Pacific Journal of Mathematics, Vol. 69, No. 2, 1977, pp. 415-424.
35. Reverse plane partitions and tableau hook numbers (with A. Hillman), Journal of Combinatorial Theory, Ser. A., September 1976, pp. 216-221.
36. Fibonacci Numbers and Zigzag Hasse diagrams (with A.P. Hillman and M.T. Stroot) The Fibonacci Quarterly, Vol 1, No 3, 1963, pp43-45.