| Chapter 8: Political Parties | 19 | March 26, 2013 |
| Chapter 6: The Media | 15 | March 26, 2013 |
| Chapter 16: Equality & Civil Rights | 21 | March 26, 2013 |
| Chapter 15: Order & Civil Liberties | 16 | March 26, 2013 |
| Chapter 10: Interest Groups | 14 | March 26, 2013 |
| Chapter 9: Elections & Campaigns | 19 | March 26, 2013 |
| Chapter 7: Participation & Voting | 17 | March 26, 2013 |
| Chapter 19: Differential Gene Expression in Development | 33 | March 17, 2013 |
| What was the Score? | 8 | February 24, 2010 |
| Can you win? | 7 | February 18, 2010 |
| Shall I pick you up? | 8 | February 16, 2010 |
| The Game Will Start At 6:30 | 10 | February 13, 2010 |
| hello! | 11 | December 9, 2009 |
| i cannot go to school | 9 | December 9, 2009 |
| i took medicine three times today | 10 | December 9, 2009 |
| I do not plan to go to school tomorrow | 6 | December 9, 2009 |
| it will probably snow | 11 | December 8, 2009 |
| Have you ever gone to church? | 15 | December 7, 2009 |
| chapter six | 38 | November 28, 2009 |
| precarious to prostrate | 15 | November 28, 2009 |
| I cannot go to school | 9 | November 16, 2009 |
| paramount to phalanx | 15 | November 4, 2009 |
| vocabulary #4 | 15 | October 14, 2009 |
| Please do not speed | 11 | October 14, 2009 |
| japanese informal speech | 10 | October 11, 2009 |
| vocabulary review #3 | 15 | October 5, 2009 |
| i will go borrow a book | 7 | October 4, 2009 |
| may we wear a hat? | 11 | October 1, 2009 |
| the baby is still one | 11 | September 27, 2009 |
| where do you live | 11 | September 27, 2009 |
| i like to swim | 9 | September 23, 2009 |
| a pencil is under the desk | 14 | September 17, 2009 |
| Chapter 11 | 54 | April 22, 2009 |