A major problem facing countries accepting refugees is integrating them into schools. Besides the language barrier, there are other factors that make learning difficult for refugees. Sweden and Germany are the two countries accepting the most refugees. Migrants from Syria, Afghanistan, Iraq, and elsewhere are struggling in Swedish and German schools because of the systems. Part of the issue is that most refugees tend to be concentrated together. As a result, migrants are often placed in the same schools, making integration harder. The chart below compares the school performances of immigrants who are concentrated together. Apparently, schools occupied by more than a quarter of immigrant students tend to perform worse than those with no immigrants. Unfortunately, a solution has yet to be established. However, both countries are working hard to come up with permanent solutions that will make learning easier. You can read more here.