Some 65% of socio-economically advantaged students reported that they know well or have often heard of the concept of quadratic function, on average across OECD countries; but only 43% of disadvantaged students so reported. On average across OECD countries, the 20% of students who are most...

Privately managed schools tend to attract more advantaged student populations; but the difference between the socio-economic profiles of public and private schools is narrowed when privately managed schools receive higher levels of public funding. The difference between the socio-economic...