With an average of 16.2 children per teaching staff in ECEC programmes, Belgium was ranked above the average in the OECD where the average children-to-teaching staff ratio is 14.5 (OECD, 2014). In terms of total expenditure on ECEC, Belgium spent an equivalent of USD 6 333 per child in 2011, compared to the average of USD 7 446 across the OECD (OECD, 2014). The European Commission (2014), among others, has drawn attention to the importance of focussing not just on the quantity of places but also on the quality and adequacy of ECEC provision in responding to the needs of an increasingly diversified population. As shown in Figures 3.2 and 3.3, Belgium is among the countries offering the lowest student-to-teacher ratio and class size at the lower secondary education across countries participating in the OECD Programme for International Student Assessment (PISA).