BERLIN — In Germany’s ever-swirling debate about its past, it is a relatively recent, always delicate question: How do you teach Muslim Germans about the Nazis and the Holocaust?

The topic has bubbled up in recent weeks, after discussion in Bavaria about a proposal for all eighth or ninth graders there to visit a former concentration camp or the newly opened center in Munich documenting Nazi crimes.

In Bavaria today, only pupils in a gymnasium, the top rank of high school, are required to make such visits. As the 70th anniversary of the liberation of the Auschwitz-Birkenau death camps in Poland approached in January, and as the number of reported anti-Semitic incidents increased, Josef Schuster, the head of the Central Council of Jews in Germany, suggested that all ninth-grade students make such trips.

Education in Germany is a matter under the jurisdiction of the country’s 16 states. When the Free Voters, a small group in Bavaria’s legislature, took up Mr. Schuster’s suggestion, it ran into resistance from the conservative Christian Social Union, long the state’s governing party.