 This building also has restrooms, three classrooms, an altar and the hallway for the student's lockers, beginning in the schoolyear 2016-2017 and onward, the third floor of the annex building is now used for the Senior High school students and a room reserved for the faculty members.Girls and boys are usually separated during teaching hours to preserve all Mother Goosians' Christian values, especially chastity.Sex education is forbidden per the Catholic Church's mandatory command, however genital-related topics are discussed during Biology classes which starts on the third year of high school.