Introducing: Dr. Mike Starbird from the UT Department of Mathematics.

Again, we had a full house, with over 200 people in attendance.

Mike Starbird told us about infinity...

... and beyond.

Here he explains what it means for two sets to have the same cardinality.

We showed that the rational numbers had the same cardinality as the natural numbers.

Everyone was working hard on the problems...

... even our really young students!