For Public Elementary and Secondary Schools: CONDUCT OF THE NATIONAL CONFERENCE OF SCIENCE AND MATH SUPERVISORS ON THE IMPLEMENTATION OF THE SPECIAL SCIENCE PROGRAM Posted on August 30, 2017 by DepEd Mandaluyong Leave a comment 17-08-139. CONDUCT OF THE NATIONAL CONFERENCE OF SCIENCE AND MATH SUPERVISORS ON THE IMPLEMENTATION OF THE SPECIAL SCIENCE PROGRAM Memorandum Unnumbered