Amado T. Reyes Elementary School is the smallest school in the City of Mandaluyong with a Teacher-In-charge as its head. It is located at Sheridan Street, Brgy. Buayang Bato, with a total lot area of 330.76 square meters. The school started with a two-storey academic building with a total floor area of 290 square meters. The first floor housed the Grades I and 2, canteen and comfort rooms for boys and girls, clinic and stock rooms while the Grades 3 and 4, Home Economics Room, and library occupied the 2nd floor. In 1995, an extension was built at the side adjacent to Pasig river due to the entrance of more pupils. It housed the library, clinic and stock rooms. Later on, another extension was made for a mini-computer lab and Principal’s office.