Notre-dame international high school (ndihs) in verneuil-sur-seine, a residential area west of paris, france. is a private bilingual international school and is part of École notre-dame les oiseaux. it accepts boarding and day school students and provides education for grades 9 to 12 (15 to 18 years old)[1] the school is a branch of the nacel international school system (niss) which is an international network of american styled high schools such as saint paul preparatory school in minnesota and saint paul american school in beijing, china. students, who come from many nationalities, receive an american and french based curriculum leading to the us high school diploma.