Season 1 of Are You Smarter Than a 5th Grader? premiered on February 27, 2007.

Season 1 Class:

Annalise Basso

Pablo

Madison Pettis

Danielle Cohen

Zach Callison

Malachi Smith

Khamani Griffin

Kevin

Taylar Hender

Season 2 Class: Armaan Juneja Terrell "TJ" Burnett TY Panitz Jordan Jones Lauren Perez Madison Leisle Antonio Gutierrez Jenni Marer Danielle Soibelman

Season 3 Class: Jonathan Cummings Jenna Balk Olivia Dellums Kassidy Yeung Bryce Kass Francesca DeRosa

Season 4 Class: Simmons "Tres" Allison III Reagan Strange Lauren Bullock Mason Davis Dee DuBois Angela Azar