(mainly because of the country's European heritage) such as English, German, Italian or French. Public schools also have mandatory English and Spanish but only once or twice a week. Canada In Canada, almost all public schools use either English or French as the medium of instruction; French is standard in the province of Quebec (a few cities also offering English-language schools) and, along with English, in New Brunswick. The official language not used as the primary medium of instruction is taught as a mandatory subject in primary school and becomes optional for most secondary school students. Many public and private school systems in English jurisdictions also offer French immersion. In parts of Canada such as the Northwest Territories and Nunavut, some aboriginal languages, such as Inuinnaqtun and Tłı̨chǫ, are also used in local school systems. Heritage languages (immigrant or diaspora languages) are as also common across Canada in public and private schools. United States English is used, but in some schools, Spanish, French (in Louisiana), Hawaiian (in Hawaii), and local Native American/American Indian languages are used as well. The Cherokee Nation instigated a 10-year language preservation plan that involved growing new fluent speakers of the Cherokee language from childhood on up through school immersion programs as well as a collaborative community effort to continue to use the language at home. This plan was part of an ambitious goal that in 50 years, 80% or more of the Cherokee people will be fluent in the language. The Cherokee Preservation Foundation has invested $3 million into opening schools, training teachers, and developing curricula for language education, as well as initiating community gatherings where the language can be actively used. Formed in 2006, the Kituwah Preservation & Education Program (KPEP) on the Qualla Boundary focuses on language immersion programs for children from birth to fifth grade, developing cultural resources for the general public and community language programs to foster the Cherokee language among adults. There is also a Cherokee language immersion school in Tahlequah, Oklahoma that educates students from pre-school through eighth grade. Asia In Azerbaijan, Azeri is the main language of instruction. Instruction in Russian and to a lesser extent in English at both secondary and postsecondary level is also offered in some educational institutions. Georgian is the language of instruction in secondary schools in the Georgian-populated northern regions. Education was conducted in Armenian in some secondary schools until the First Nagorno-Karabakh