define “what equality in schooling” means and also what “equity in schooling” means.

Please define “what equality in schooling” means and also what “equity in schooling” means. (PLEASE see link below for article pertaining to this question)
Finnish education chief: ‘We created a school system based on equality’

http://chalkboard.tol.org/finnish-education-chief-we-created-a-school-system-based-on-equality/