Autumn meeting of the principals' association in Lower Saxony

Lower Saxony's Minister of Education Frauke Heiligenstadt (SPD) speaks at the autumn meeting of the principals' association of Lower Saxony (SLVN) in Celle, Germany, 27 September 2017. Around 350 principals gathered with the motto 'Farbe bekennen - Wie halten Sie es mit den Schulleitungen?' (lit. 'Show your colours - What do you think about the school administration?'). Photo: Holger Hollemann/dpa (Photo by Holger Hollemann/picture alliance via Getty Images)