Percentage of schools with potable water is the share of schools at a given level of education with a drinking water facility or water delivery point that is designed to protect water from external contamination, particularly of fecal origin. Examples of potable drinking water facilities include: pipe-borne water, protected wells, boreholes, protected spring water and rainwater

Percentage of schools without electricity is the share of schools with no access to permanent sources of electrical power, for example grid / mains connection, wind, water, solar, permanently fuel-powered generator, etc.

Percentage of schools without toilets is the share of schools at a given level of education without a pit latrine, an improved pit latrine, a flush toilet, a pour-flush toilet or a composting toilet

Mean performance on the mathematics scale is the mean mathematics score for students in national or international assessments

Mean performance on the science scale is the mean science score for students in national or international assessments

Mean performance on the reading scale is the mean reading score for students in national or international assessments

The primary education priority ratio is the percentage of total education expenditure allocated to primary education

This indicator measures the proportion of teachers who are not in school although they were expected to be teaching when visited by a survey team, out of all teachers who were expected to be teaching

Seasonal migrants are persons employed in a State other than their own for part of the year because the work they perform depends on seasonal conditions