For secondary level there are two exams which certify the completion of first or second level, and assess knowledge on mathematics, social and natural sciences and philosophy (the number and content of subjects varies per level).

UNESCO: Country Profile: Chile

The programme is based on a multi-disciplinary approach which offers a variety of subjects that include language and communication, mathematics, and social and natural sciences.

UNESCO: Sistema Interactivo Transformemos Educando

The manuscripts about natural and exact sciences cover a wide variety of subjects like mathematics especially calculations, which were used for architecture.

UNESCO: CULTURE