David Potier, head of commercial relations with France's state rail company, promotes the English classes and Canadian Afton Piercy is one of the teachers. Eleanor Beardsley/NPR hide caption

itoggle caption Eleanor Beardsley/NPR

Police were checking cars throughout Paris on Monday, including near the Arc de Triomphe, as the city tried to cut air pollution by instituting odd-even driving restrictions. Philippe Wojazer /Reuters /Landov hide caption

itoggle caption Philippe Wojazer /Reuters /Landov

This electron microscope image provided by researchers shows a section of a Pithovirus particle, dark outline, inside an infected Acanthamoeba castellanii cell. Julia Bartoli, Chantal Abergel/AP hide caption

itoggle caption Julia Bartoli, Chantal Abergel/AP

Francois Hollande on a scooter in Paris in 2011, before he was elected president. A French magazine reported last week he was traveling incognito on a motorcycle to visit a girlfriend. He has not denied the report, but expressed "total indignation" that it was published. Bertrand Langlois/AFP/Getty Images hide caption

itoggle caption Bertrand Langlois/AFP/Getty Images

Quebec Premier Pauline Marois stands to support a motion regarding the controversial values charter at the Parti Quebecois Convention in Montreal on Sunday. Christinne Muschi/Reuters/Landov hide caption

itoggle caption Christinne Muschi/Reuters/Landov

French Minister for Industrial Renewal Arnaud Montebourg attends the Made in France fair in Paris on Saturday. According to a poll, more than 70 percent of the French say they would pay more for goods made at home. Alain Jocard/AFP/Getty Images hide caption

itoggle caption Alain Jocard/AFP/Getty Images