PISA 2015 data show that, on average across OECD countries, as many as three out of four students from the lowest quarter of socio-economic status reach, at best, only the baseline level of proficiency (Level 2) in reading, mathematics or science. While in Canada, Denmark, Estonia, Finland, Germany, Hong Kong (China), Ireland, Japan, Korea, the…

With most students around the world having experienced remote learning over the past year because of the COVID-19 pandemic, the importance of teachers and schools has become all the more evident. Temporary school closures underline how richly students benefit from being in school with their teachers and classmates. "Positive, High-achieving…