According to the European Parliament, Study Visits are designed to provide citizens with opportunities for more detailed study of specific subjects relating to European integration.  In education, Study Visits can provide teachers, headmasters, inspectors of education and other advisers with excellent professional experiences to exchange information and points of view.
People wishing to undertake study visits to Catalonia should check the annual offer of the CEDEFOB:

[+] Catalogue 2013 (pag 230)
[+] Catalogue 2012 (pag 85, 230)