FOR PUBLIC SECONDARY SCHOOLS: CORRIGENDUM TO THE UNNUMBERED MEMORANDUM ON CROSS-SPECIALIZATION TRAINING OF TEACHERS ON THEIR NON-MAJOR SCIENCE SUBJECTS Posted on December 5, 2018 by DepEd Mandaluyong Leave a comment 18-12-021. CORRIGENDUM TO THE UNNUMBERED MEMORANDUM ON CROSS-SPECIALIZATION TRAINING OF TEACHERS ON THEIR NON-MAJOR SCIENCE SUBJECTS Memorandum Unnumbered