Language Group Materials
6 year contract from June 1, 2004 to June 30, 2010

Literature and Vocational Group Materials
6 year contract from June 1, 2006 to June 30, 2012

Mathematics Group Materials
6 year contract from June 1, 2005 to June 30, 2011

Reading Group Materials
6 year contract from June 1, 2007 to June 30, 2013

Science Group Materials
6 year contract from June 1, 2008 to June 30, 2014

Social Studies Group Materials
6 year contract from June 1, 2008 to June 30, 2014