The establishment of the Rizal National Science High School was conceived by then Congressman Gilberto M. Duavit of the First District of Rizal, and former Governor Casimiro M. Ynares, Jr., who both envisioned the Province of Rizal to be the “knowledge center." It was established on January 19, 1998, under Republic Act No. 8724, and authored by then Congressman Gilberto M. Duavit. It is located at Barangay Batingan, Binangonan, and was put up to provide for a more intensive and advanced secondary education program with special reference to science and technology.
In conformance to the Division Memoranda issued by the Division of Rizal, students who are eligible to take its entrance examination are the following:
•Must belong to the upper 10% of the graduating class in public or private elementary school in:
o Division of Rizal; and
o Any division provided he/she have maintained residency in the Province of Rizal for at least one year before his/her application.
Students who seek admission to the school must pass two written examinations. Afterwards, the students must undergo interviews with the school's board of members and faculty.
The examination consists of mental ability test and achievement test covering verbal and non-verbal analogy, biology, physics, and mathematics. The first entrance examination is held in January, the second in February, and the interview in March–April.
The top 120 students are admitted and announced weeks after the interview process.
A student should maintain grades of 85% or higher in all the subjects, in every grading period. A grade of 84% or below in any subject, in any grading period of the school year will lead the student to a probationary status. A final grade of 84% (flat) or below in any subject indicates failure.
The grades of the students are based on the guidelines and criteria prescribed by the Department of Education.
There are four grading periods. The grades in each period are computed based on 'Percentage Distribution of the Components of Students' Grade' (Enclosure no. 2 to DepEd Order no. 33, s. 2004). The final grade for each subject area will be computed by averaging.
The learning environment of RiScians is not limited to its walls. Students are exposed to extracurricular activities such as science fairs, school press conferences, quiz bees, seminars, training, student organizations and clubs. Extracurricular activities RNSHS actively participates annually in contests like Schools Press Conferences, Science Fairs, Essay Writing Contest, Patimpalak ng Sabayang Pagbikas, Speech Choir Competitions, Oratorical and Extemporaneous Speaking, Water Rocket Events, Tagisang Robotics of the Department of Science and Technology, and other events sponsored by schools, government agencies/units and non-government organizations.