For the second time in less than a year, the COVID-19 pandemic has forced schools to close for most children, with the majority of children once again learning remotely. During the first lockdown, research from the Sutton Trust found that children's experiences of remote learning varied substantially across different socio-economic backgrounds. There is a risk that years of work to reduce the attainment gap and tackle social mobility could be undone in just a few months. This research brief, authored by Rebecca Montacute and Carl Cullinane, looks at the situation for pupils at the beginning of the second period of school closures. Survey data from Teacher Tapp and YouGov give an up to date picture of how teaching is being delivered remotely, as well as access to resources, and barriers faced while learning at home. The report also looks at how the impacts of the pandemic on education and social mobility can be minimised.