Inspired by Gavin LaRose's automatic tutoring system, this differentiation skills tutor gives automatic context-sensitive help for students with differentiation problems. Acts as a quiz or a tutor, as controlled by the student.

• Web interface
• Tests correctness
• Auto-generated student-like recursive problem solving
• Entirely client-side scripts via JS.

...the last two of which are the real novelties. See Le Petit Professeur

For math JCU's 135 (Calculus I), I built an online list of learning objectives which is

• Explicit
• Fine-grained
• Comprehensive, and
• Guaranteed complete for testing.

Its purpose is to communicate the often unspoken assumptions about skills, ideas, proficiencies, and deeper conceptual issues that students must learn, together with a brief indication of their intended difficulty.

A suite of maple tools illustrating various topics in a Calculus I course, including the definition of the derivatives, Riemann sums, and translations. Download the package, or see samples not requiring maple. Work in progress.

A suite of perl scripts intended for use in presentation of large websites. The purpose of the tool is to convert a Unix directory tree full of (presumably unlinked) html files into a presentation of that data, with (arbitrarily deep) explorer-style directory tree navigation structure. See UM Math 115 for an example use. Please email me for the code, which is distributed under the GNU Public License, version 2.

Introduction of WeBWorK to Johns Hopkins University Mathematics Department for online homework purposes, and administration of the project.