The State of Nuevo Leon has 17 private and public higher education institutions, some with international recognition and the eldest of which is over 60 years old. Monterrey is the headquarters of the Instituto Tecnológico y de Estudios Superiores de Monterrey, also called Tec de Monterrey or Monterrey Tec. At the grade school level, Monterrey has more than 50 schools where students are taught both in English and in Spanish.