Unit 1 19th June 2012 pm (calculator)
Unit 2 11th June 2012 pm (non-calcualtor)
Unit 3 13th June 2012 am (calculator)

New spec
Linear Higher non calculator 11th June 2012 pm
                         calcualtor 13th June 2012 am

Linear Foundation  non calculator 11th June 2012 pm
                           calculator 13th June 2012 am