Gradual opening of schools - what might that look like?

In its Easter Monday statement, the National Academy of Sciences Leopoldina recommends that the educational sectors be gradually reopened and that examinations be held whenever possible. In an interview with the NDR and the KN, Prof. Dr. Olaf Köller, Managing Scientific Director of the IPN and member of the group of authors of the Leopoldina Recommendations, explains what this might look like in practice.