Regional Science High School for Region 1

The school started with a single classroom consisting of 60 bright students coming from different provinces in the Ilocos Region, with Dr. Igmedio M. Cariaga as Principal. For almost four years, it shared classrooms with its mother school DFLOMNHS located at National Highway, San Blas, Bangar, La Union. Then in July 1998 RSHS moved to its present site at Ma. Cristina East, Bangar, La Union. The RSHS-1 campus was donated by the Municipal Government of Bangar.

Admission to any RSHS is a three-step screening given to all qualified elementary students. To be eligible for admission, applicants must be Filipino students who belong to the top 10% of the graduating class and must have special aptitude in science and math. The screening includes two examinations and one interview.

The RSHS for Region 1 campus contains three buildings: the old academic building, a laboratory building, and the administrative building. The academic building houses all the lecture classes of the students and ICT laboratory. The laboratory building houses science laboratories. The Administrative building houses the Office of the Principal, Faculty Office, and School Library.

Located beside the Administrative building, the laboratory building houses the four laboratories: the General Science Laboratory, the Biology Laboratory, the Chemistry Laboratory and the Physics Laboratory.

The RSHS Library supports the students by providing resources ranging from traditional print and microform to electronic subscription e-journals and databases. Located on the administrative building, the library is composed of the General Library, which stores encyclopedias; the Natural Science Section which covers sciences, mathematics and ICT; the Human Sciences Library which covers history, languages and literature, and other fields of social sciences; and the Multi-media and Internet Library.

The school has also one covered court where sports activities and other productions are held. Construction of the facility began in 2001 as part of the project of the 5th batch of SCIons (class 2002).

RSHS-1 alumni are called "SCIons" from the word "Scio" (Latin) word which means science, knowledge and to know; "ions" which implies their importance to society; and the word itself "scion" which denotes descendant of Galileo Galilei, the Father of Modern Science.

Roughly one percent (1%) of alumni are in the sciences, engineering, and mathematics. The rest are in the humanities, journalism, law, business administration, accountancy, medicine, public administration, and the military.