It became a coeducational school, with the intention of providing not only an excellent academic preparation, but, above all, an integral and deeply humanistic formation.

Spiritual and Christian formation are significant aspects that are part of the heritage of these pioneers.

An innovative and revolutionary pedagogical option began to take shape within the Institution, directed by Mr. Quince Duncan, initially known as SIDEI, and in 1980 it was implemented as a pilot plan called SIPEIN (Acronym for its name in Spanish)

 (Interdisciplinary Pedagogical System), which is still in place today.

The Franciscan Sisters decided to withdraw from the educational activity in the country. For this reason, the Pro-Saint Clare High School Association was organized, composed of parents, alumni, teachers, and administrative staff of the school, to give continuity to the same philosophy, academic plan and symbols.

It is integrated to the Secondary School educational process: Preschool and Elementary School, for which we proceeded to rent facilities at the Santa Monica School located in Montelimar – Goicoechea.

The construction process of the first stage of the new facilities in San Juan de La Unión begins. The above with the purpose of unifying all its sectors in its own facilities.

Inauguration of I Stage facilities: Saint Clare Preschool (children from 3 to 5 years old: Pre-kinder, Kinder and High School). II Stage construction process begins.

Inauguration of II Stage facilities: Saint Clare Primary (I to VI Grade).  Transfer to the facilities in San Juan de La Unión.

Saint Clare Nursery School (children 1.5 years old to 3 years old).

Construction process III Stage begins: Saint Clare Secondary School (7th to 11th grade and PROEI).

Inauguration of secondary school facilities. Integration of all levels in San Juan de La Unión.