A teacher teaches to schoolchildren in a classroom at a private school during its reopening in Saint-Sebastien-sur-Loire near Nantes during the outbreak of the COVID-19 in France, May 12, 2020. REUTERSA disinfection squad cleans the school canteen of Saint Exupery primary school as France prepares for the gradual lifting of lockdown restrictions during the outbreak of the COVID-19 in Cannes, France. REUTERSA shelf with books and games which could not be used by children is protected by tape in a classroom in a private school on the eve ot its reopening in Saint-Sebastien-sur-Loire near Nantes in France, May 11, 2020. REUTERSA school staff member cleans school supplies in a classroom at a primary school during its reopening in Paris, France. REUTERSPrimary school reopening in Nice as a small part of French children head back to their schools in France. REUTERSSchoolchildren listen to their teacher at the primary school Simone Veil during its reopening in Nice, France. REUTERSA teacher, wearing a protective face mask, teaches to schoolchildren in a classroom at a private school in Saint-Sebastien-sur-Loire, France, May 12, 2020. REUTERSEmployees install signs on the floor to help children to respect social distancing at a primary school on the eve of its reopening in Nice as France softens its strict lockdown. REUTERS