Covid-19 lateral flow testing going 'like clockwork' as Plymouth pupils return Today students will begin to go back to school as part of the first stage of the government's road map Updated The video will auto-play soon8Cancel Play now Schools across the country welcomed back pupils as the first stage of Prime Minister Boris Johnson's road map began. Primary schools are expected to open all at once, while secondary schools will have a staggered opening procedure. Secondary school pupils will be given 'lateral flow' test kits they will use to test themselves at home, twice a week. They will also be tested at school before they can start lessons in the classroom and will have to wear masks during lessons.