On December 12, 1948, former Philippine President Elpidio Quirino issued Presidential Proclamation Nos. 96 and 263, granting a total of 25,410 hectares of land to Tangos 1 Elementary School. This occurred during the tenure of Mr. Fabio Ablola as the District Supervisor of Navotas and Mr. Alejandro Santos as the school principal.
In 1950, the school started with a single building containing two classrooms, catering to students in the third and fourth grades. Students in other grade levels attended Tangos Elementary School (Mother School). However, due to the vast land area of Tangos 1, sixth-grade students from Tangos Elementary School (Mother) held their Graduation Day at this location. Eventually, fifth and sixth grades were also offered at the school, as many students found it difficult to attend the original Tangos Elementary School (Mother) due to its distance.
Students worked together to transport cans of sand from the shores of Manila Bay to elevate the school grounds. A concrete wall was built around the school to prevent people from using it as a passageway between the port area and the main road. In 1962, Tangos 1 officially became an elementary school under the leadership of Mr. Serafin del Rosario as the principal and Dr. Carmen Llnera as the District Supervisor of Navotas’ Second District.
In 1977, the late Dr. Felipe Neri A. Del Rosario, former mayor of Navotas, requested that a portion of Tangos 1 Elementary School be temporarily used to house fire victims from Tangos for only six months. However, they have remained there until today, and the area is now known as the Emergency Relocation Center (ERC).
In 1990, the Old Rodriguez Building, Filipino-Chinese Federation Building, and Industrial Arts Building were occupied by what was then Navotas National High School. Eventually, a two-story building was constructed, which is now called Tangos National High School.
Currently, Tangos 1 Elementary School consists of three four-story buildings, known as the DepEd Buildings, an Administrative Building donated by the late Doña Engracia Reyes, the Angat Navotas Multi-Purpose Building, and the Home Economics Building, which now serves as the school canteen.
Efforts continue to enhance the vast land area of Tangos 1 to provide quality education for students now and for generations to come.