Functional programming, type theory, programming language theory, and formal linguistics.
IDS 101: College Colloquium on The Nature and Origin of Consciousness
CS 203-X: Preparation for the National Cyber League Competition
CS 241: Data Structures
CS 353: Architecture and Compilers
CS 354: Functional Programming
CS 495-6: Computer Science Senior Seminar
Tips on Teaching Types and Functions. Fritz Ruehr. Workshop on Functional and Declarative Programming in Education, 2008.
An Integrated Course in Architecture and Compilers. Sahnny Johnson and Fritz Ruehr. Journal of Computing Science in Colleges. Volume 21, Number 1, October 2005.
Deconstructing Factorial. Fritz Ruehr. Proceedings of the International Workshop on Functional and Declarative Programming in Education, Christian-Albrechts-Universität Kiel. September 2002.
Structural Polymorphism. Fritz Ruehr. Proceedings of the Workshop on Generic Programming, Marstrand, Sweden. June 1998 (NB: although other conference papers were refereed, mine was not, as it was solicited by specific invitation).
A Survey of Extensions to APL. K. Fritz Ruehr; 1982 ACM APL Conference, 1982.