math
The Locker Puzzle
This is my favorite puzzle. A hallway in a school has 100 lockers. A student runs down the hall and opens every locker. A second student runs down the hall and closes every other locker, starting at the second. A third student runs down the hall and “flips” every third locker, starting at the third […]
Just a Log
Over the years, I’ve been taking math courses at various universities. With each step through the sequence, I happily enroll in the next course, thinking, ‘now THIS is going to be the course with all math majors in it, no complainers, no one whining about too much homework or too many chapters being covered.’ I […]
Jack Silbert, curator