Transcript: Challenge Index (washingtonpost.com, May 19, 2008; 11:00 AM) Thursday, Dec. 13 at 2 p.m. ET: Challenge Index (washingtonpost.com, December 13, 2007; 2:00 PM) Transcript: Ranking D.C. Schools: Which Way Is Best? (washingtonpost.com, December 4, 2007; 2:00 PM) Monday, Nov. 5, 2007 2 p.m. ET: Post Magazine: Middle School International Baccalaureate (washingtonpost.com, November 5, 2007; 2:00 PM) Transcript: Challenge Index (washingtonpost.com, May 21, 2007; 12:00 PM) Transcript: Post Magazine: Middle Schools (washingtonpost.com, April 16, 2007; 12:00 PM) Transcript: Challenge Index (washingtonpost.com, December 12, 2006; 11:00 AM) Transcript: Overachieving Students Under Pressure (washingtonpost.com, August 16, 2006; 12:00 PM) Education: Discussion About K-12 System (washingtonpost.com, June 13, 2006; 12:00 PM) Education: Discussion About the Country's Best High Schools (washingtonpost.com, May 2, 2006; 2:00 PM) Transcript: Education (washingtonpost.com, March 14, 2006; 11:00 AM) Transcript: Outlook: No Child Left Behind? (washingtonpost.com, March 13, 2006; 1:00 PM) Transcript: Education (washingtonpost.com, December 15, 2005; 1:00 PM) Education: Teacher Transfer Rules Hurt Schools, Study Says (washingtonpost.com, November 17, 2005; 1:30 PM) Transcript: College Application Help (washingtonpost.com, September 6, 2005; 2:00 PM) Transcript: Making Choices About Education (washingtonpost.com, August 8, 2005; 2:00 PM) Transcript: The Challenge Index 2005 (washingtonpost.com, May 11, 2005; 1:00 PM) Transcript: High Schools That Work (washingtonpost.com, April 4, 2005; 1:00 PM) Transcript: High Schoolers Score On College Courses (washingtonpost.com, February 8, 2005; 12:00 PM) Education: Challenge Index: Back-to-School Series (washingtonpost.com, December 9, 2004; 1:00 PM)