2015
- July 31: 
- 
"Folding pseudo-stars that are cyclicly hinged,"
a talk at Bridges Baltimore 2015: Mathematics, Music, Art, Architecture, Culture, 
 University of Baltimore, Baltimore, Maryland,
Friday, July 31, at 9:30am in Room 2.
 
2010
- April 1: 
- 
"Beyond Swinging: Hinged Dissections that Twist or Fold,"
a talk at Purdue University.
 Thursday, April 1, at 6:00pm in REC 113.
Hosted by the Purdue Math Club.
 
2009
- June 25: 
- 
"Beyond Swinging: Hinged Dissections that Twist or Fold,"
a talk at the DIMACS summer 2009 REU.
 Thursday, June 25, at 1:00pm in CoRE 431.
 
 
- May 11: 
- 
"Dissecting and Folding Stacked Geometric Figures,"
a talk at the DIMACS workshop on algorithmic mathematical art.
 Monday, May 11, at 2:00pm.
2008
- October 13: 
- 
"Beyond Swinging: Hinged Dissections that Twist or Fold,"
a talk at Oberlin College.
 Tuesday, October 13, at 4:30pm in King 239.
Hosted by the Mathematics Department.
 
 
- March 27: 
- 
"Unfolding an 8-high Square, and Other New Wrinkles,"
a talk at the Eighth Gathering for Gardner in Atlanta.
 Thursday, March 27, in the afternoon.
(Attendance at this meeting is by invitation only.)
2007
- January 6-7: 
- 
A book signing and demonstration
at the 
Joint AMS-MAA Meetings
in New Orleans.
 Sunday, January 7, at 4:00pm, at the A K Peters Booths, #702 and #704, in the Exhibits hall.
2006
- September 8 - October 28: 
- 
"Two pentagrams fold into a 10-pointed star,"
 a model out of cherry wood of my fold-hinged dissection
of two pentagrams to a {10/3} star,
 in the exhibit "Men of Art" at the
Art Museum of Greater Lafayette,
Lafayette, Indiana.
 
 
- September 8-10: 
- 
"Folding dissections: Geometric cousins of Origami,"
 a talk at the 
Fourth International Conference on Origami in
Science, Mathematics, and Education
 at the California Institute of Technology, Pasadena, California.
2005
- July 31: 
- 
"The Manifold Beauty of Piano-hinged Dissections,"
an invited talk at the 
Renaissance Banff Conference
 at the Banff Centre, Banff, Alberta, Canada.
2004
- August 13: 
- 
For my article, "A New Wrinkle to an Old Folding Problem,"
 I received the George Pólya Award 
from the
Mathematical Association of America
at the 
Mathfest 2004
 in the Prize Session, in the Narraganset Ballroom,
11:30 am - 12:00 noon.
 For a photo, see FOCUS, vol. 24, no. 8 (Nov. 2004), p. 21.
 Also see Notices of the AMS, vol. 51, no. 10 (Nov. 2004), p. 1234.
2002
- December 6: 
- 
An invited talk, "Piano-Hinged Dissections: Let's Fold,"
 at the 
The Japan 
Conference on Discrete and Computational Geometry 2002 (JCDCG 2002)
 at Tokai University, Tokyo, Japan,
 11:50 am - 12:30 pm.
Last updated March 2, 2010.