The PISA (Programme for International Student Assessment) is an internationally standardized assessment that was jointly developed by participating countries and is applied to15-years-old students in schools. The PISA is owned by the OECD (Organisation for Economic Co-operation and development) and place students in six different levels (Level 1 is the lowest performance and Level 6 is the highest). This Assessment is performed every three years (43 countries participated in 2000, 41 in 2003, 57 in 2006 and 62 countries have signed up for 2009).Reviewing...