Marie Curie theory of "radioactivity" (a term that she coined), techniques for isolating radioactive isotopes, and the discovery of two elements, polonium and radium. Under her direction, the world's first studies into the treatment of neoplasms were conducted using radioactive isotopes. She founded the Curie Institutes in Paris and in Warsaw, which remain major centres of medical research today. During World War I, she developed mobile radiography units to provide X-ray services to field hospitals. While a French citizen, Marie Skłodowska Curie, who used both surnames, never lost her sense of Polish identity. She taught her daughters the Polish language and took
Lycée français Marie Curie de Zurich Teaching Abroad (AEFE), in Paris. The Lycée Français Marie Curie de Zurich (LFZ) offers education from kindergarten (< 3 y.o.) to the baccalaureate exams, the official diploma accredited by the French minister of National Education. It is recognised for accessing institutes of higher education in France and in Europe as well as gaining a university education in Switzerland, on the basis of a successful French Baccalaureat, but not on the basis of a Swiss Matura. 3 series of General Baccalaureat: and possibility to choose a European Baccalaureat. The Lycée Français Marie Curie de Zurich (LFZ) is an establishment in Switzerland