On December 8 (Thursday), people of Taguig City will be celebrating its cityhood. This is known as Taguig City Day. I am not really sure if classes will be held but traditionally, December 8 is observed as special non-working day. I have heard from sources that there would be no classes on Thursday. Wait for the official announcement from the school administrator regarding this matter.
Last year, President Aquino signed Proclamation No. 81 declaring December 8, 2010 as special non-working day. Below is the text of Proclamation No. 81.