In 1990, the founder of the school, Mr. Catalino G. Agapito, felt a strong urge to put up an educational institution in his community in Igulot, Bocaue, Bulacan. This urge was prompted by his desire to establish an institution which will provide quality education not only to his own children but also to the children in his community and other nearby places.
After a series of consultations with relatives and well- meaning friends, a Board of Trustees was formed on February 25, 1990 composed of the following:
CATALINO G. AGAPITO - President
FLORIANO S. CARLOS - Vice-President
LUCIANA B. AGAPITO - Secretary
JUANITA A. CARLOS - Treasurer
ALBERTO R. AGAPITO - Trustee
The school was constructed on a 3,000 sq. meter lot in Igulot, Bocaue, Bulacan, one and half kilometers away from areas of recreation, movie houses, bars, market place and traffic highway. Classrooms are air-conditioned. Furniture and facilities are scaled to children sizes, designed and colored to their standards. Materials necessary for Montessori teaching methods have been meticulously prepared. To achieve maximum productivity and effectivity, maximum of 16 students to a class in the pre-elementary and 25 students to a class in the elementary has been implemented.
The school was first named International Schoolhouse of Montessori but since it has a similar name, it was renamed Integrated School of Montessori (I.S. Montessori).
The school is operated under the spirit of public service, modern education and advancement to the children in the community. It aims to develop their skills, knowledge and information necessary to accelerate their literacy, technical and scientific potentials and make them better citizens in the future.
Upon the DECS approval, the school opened officially on June 1, 1991. There were 80 students enrolled in the different levels (Nursery - Grade III), with 6 teachers under the supervision of Mrs. Lourdes Gonzales, the first school principal. Five staff assisted in the administrative functions.
The first two years were spent preparing for the pre-elementary (called CASA) and elementary students. The interior and the furniture designs were built to project and encourage the idea of physical openness, flexibility and continuous progression. Montessori materials continued to be the most important materials in the pre-elementary level. The population in 1993 was 190.
The first principal retired in 1993 and was replaced by Mrs. Dorina G. Pineda. Ms. Josefina V. Santiago was designated Assistant Principal, in-charge of the CASA Department. School enrolment for1993-1994 was 263, including foreign students and transferees, in the different levels (Nursery - Grade V).
School year 1994-1995 was a period of marked with steady and rapid growth. Additional rooms were constructed. These structures completed the need for other school facilities such as administrative and academic offices, library, computer rooms, clinic, laboratories, work education and home economics room, and canteen.
School year 1995-1996 was a year of decision. I.S. Montessori would be graduating its first group of Grade VI students. Plans were made, this time for a high school that would bridge the gap between the elementary level and high school level. The school was able to secure a permit form the DECS to open its First Year and Second Year High School levels. Thus, the High School Department started. Total enrolment for the year was 486, including high school.
The school is now on its way to progress. Student population increased from 886 to 890, from Nursery to Fourth Year High School. There is a continuing construction and renovation of school rooms and purchase of modern school facilities. Computer education is a part of the coursed offered. The school regularly participates in academic and cultural contests within and outside the school, reaping honors for the school. The school has also performed excellently in the NEAT for the past two years. Special courses such as ballet, piano, organ, swimming, taekwondo and speech are offered during summer.
The school curriculum and the program of instructions are continuously updated to meet the increasing demand for excellence. Attendance to seminars and training of administrators, faculty and staff is a continuing concern of the school.
The school hopes to maintain its status as one of the best educational institutions in Bulacan. More and more parents rely on this institution for the academic, moral and spiritual upliftment of their children.