For an examination of a variety of the extra important aids in education and the dissemination of data, see dictionary; encyclopaedia; library; museum; printing; publishing, history of. For an analysis of pupil attributes, see intelligence, human; learning concept; psychological testing. Primary education consists of the first 4 to seven years of formal, structured education. In general Education, primary education consists of six to eight years of schooling beginning on the age of 5 to seven, although this varies between, and generally within, countries. Globally, in 2008, round 89% of kids aged six to 12 have been enrolled in primary education,…