For Public Elementary and Secondary Schools: Corrigendum to the K to 10 Training of Teachers on Critical Content English, Filipino, Mathematics, Science and Music and Arts Posted on May 15, 2018 by DepEd Mandaluyong Leave a comment 18-05-029. Corrigendum to the K to 10 Training of Teachers on Critical Content English, Filipino, Mathematics, Science and Music and Arts Memorandum Unnumbered