Complex sentence: The SSA model was replicated to create Paragon Science Academy (K-11) in Chandler which opened in the 2008-2009 school year and expanded in the 2010-2011 school year to a second campus.
Split into simpler sentences: The SSA model was replicated to create Paragon Science Academy (K-11) in Chandler. It opened in the 2008-2009 school year and expanded in the 2010-2011 school year for a second campus.