David Ross's Spring 2015 Math 100 students:

CLICK HERE for the Spring 2015 class website.

You can still email me at ross @ math100.info

You can still look up your exam scores HERE.

Here is the detailed description of how the grades were computed.

(Some of these files are password-protected. The password is Math100 [case sensitive])

(Some of the videos are...unpolished.)

My printed lecture notes on set theory, logic, number theory, number systems, probability and statistics. Many examples and visual aids from class do not appear here.

My printed lecture notes on RSA.cryptography.

My lecture notes on Voting systems

My lecture Notes on Fair Division

VIDEO: Intro to sets (Warning: audio goes out of sync at some point, I might try to fix it later tonight.)

A short article by Matt Parker about balls in drawers, infinity and intuition.

VIDEO on truth tables. Includes working all the TT examples from my lecture notes.

Smartphone-friendly version (no password, but inferior quality)

Other materials on Number Theory/Number Systems:

VIDEO: how to solve ex=b mod m

Here's the video in a cellphone-friendly form.

Handout: Worked example (from class) on RSA.

VIDEO on the "divisibility by 3 or 9" trick.

George Markowsky's influential article on the Golden Ratio, debunking common myths (some of which are repeated in the text)

Other materials on Fair Division:

VIDEO: a worked example of the Selfridge-Conway procedure (no sound)

Smartphone-friendly version.

Larry Bowen's nice website covers some cut/choose methods, sealed bids, and the method of markers.

Chapter on fair division from open-source text. (Math In Society by David Lippman)

Here is a very readible survey article on fair division by Theodore Hill from American Scientist

If I could figure out a way to do it I would like to base an entire Math 100 course on This Book. (Geometry is in Part II.)