lockdown.Schools will be urged to provide face-to-face lessons under government plans to ensure "no child is left behind" because of the Covid-19 pandemic..Prime Minister Boris Johnson has pledged a further £420million to fund the plan, as well as £300m announced in January for catch-up schemes.However, experts and unions fear the move could "overwhelm" pupils and teachers.As part of his roadmap to easing lockdown restrictions, unveiled earlier this week, the prime minister announced all schools would reopen on March 8.Since the start of the pandemic, pupils have missed about half a school year in classroom education, the government revealed.Pupils who need extra support will be prioritised for the summer lessons.