| Date | Subject |
|---|---|
| February 8, 2011 | Archimedes |
| March 15, 2011 | Fairy Tales |
| April 25, 2011 | Etymology |
| April 25, 2011 | Etymology |
| May 17, 2011 | Number Line |
| May 24, 2011 | Darmok and Jalad |
| May 25, 2011 | Extended Mind |
| May 25, 2011 | Extended Mind |
| May 25, 2011 | Extended Mind |
| July 25, 2011 | Speculation |