Math Lair is divided into eleven sections. These sections are as follows:

- Topics
- Pages that treat a topic related to mathematics (or occasionally another subject area). This is the largest section of the site.
- Mathematics History
- This section contains timelines and brief descriptions of the mathematical accomplishments of various historical cultures.
- Puzzles and Problems
- This section contains a selection of original and classic puzzles and problems. Some require no mathematical skill, while others are more involved.
- Mathematicians
- Pages that discuss the lives and accomplishments of famous mathematicians.
- Interactive Content
- Pages that interact with the user. Most of these were originally written in Java, although I'm slowly rewriting them to use standard DHTML.
- Source Material
- Out-of-copyright mathematical works of interest.
- Book Reviews
- My reviews of mathematical books.
- Worksheets
- A selection of worksheets on a wide assortment of topics.
- Test Preparation
- Material to help prepare for mathematics on tests such as the SAT and ACT.
- Other Stuff
- Administrative and other pages that don't fit into the above categories.