Higher levels of immigration do not damage educational achievement in the host country, a global study from the OECD economic think tank suggests. It found no link between the numbers of migrant children and the performance of school systems. But it indicated wide gaps in a sense of “belonging” – with the lowest levels among migrant students in France. The OECD’s Andreas Schleicher said many migrant families were “hugely motivated” to succeed in education. The…