"The concept of classification is at the heart of Bernstein’s theory of pedagogic discourse and practice. Classification refers to ‘the degree of boundary maintenance between contents’ (Bernstein 1973a, p. 205; 1973b, p. 88) and is concerned with the insulation or boundaries between curricular categories (areas of knowledge and subjects). Strong classification refers to a curriculum that is highly differentiated and separated into traditional subjects; weak classification refers to a curriculum that is integrated and in which the boundaries between subjects are fragile."
(Alan R. Sadovnik, 2001)
Prospects: the quarterly review of comparative education (Paris, UNESCO: International Bureau of Education), vol. XXXI, no. 4, December 2001, p. 687-703. UNESCO: International Bureau of Education, 2001