Talks

Denison University, October 25–26
- Proofs and Confirmations: The Story of the alternating Sign Matrix Conjecture
- Stories from the Development of Real Analysis
Randolph Lecture, MAA Seaway Section, Rochester, NY, October 20,
- Calculus in High School
Pi Mu Epsilon talk, University of Nebraska, Lincoln, October 4:
- Explorations of the Foundations of Calculus
MAA Distinguished Lecture Series, Washington, DC, September 19:
- The Story of the Alternating Sign Matrix Conjecture
MathFest, San Jose, CA, August 2–5
- Project NExT: Increasing the Number of Majors
- SIGMAA TAHSM: Calculus in High School
- Minicourse:
  - Limits,
  - Sunday homework,
  - Elliptic functions and Newton's Principia,
  - harmonic series problems,
  - more problems on harmonic series
MathPath, Colorado College, July 24–26
- Introduction to Recursions
- Sums of Powers
- Counting Alternating Sign Matrices
- Plane Partitions and the Six Vertex Model
Davidson Young Scholars, St. Paul, MN, June 21–22
- The Art of Counting, ages 4–11
- The Art of Counting, ages 10–16
AP Reading, Louisville, KY, June 15
- Has Calculus Become a High School Course?
CBMS, Washington, DC, May 4
- Challenges for the Undergraduate Curriculum
Visualizing the Future of Mathematics, LA, April 13
- Challenges for the Undergraduate Curriculum
Joint Math Meetings, New Orleans, January 4–8
- Transition to Proof
- Using history to understand how to teach Real Analysis
- Report on Calculus at Macalester College