Why do children of "migration background" -- whose families may have arrived in Germany as many as two generations ago but are still perceived as "foreigners" -- often perform significantly worse at school than their native German counterparts? The problem is discrimination. This report gives a face and a voice to the discrimination that many children of migration background experience in Berlin. Its purpose is to show, through concrete stories, that discrimination in schools against migrant children is widespread -- and to call on all Berliners to condemn and end it.