For Public & Private SPED Institutions & Centers: Corrigendum to regional Memorandum No. 21, s. 2015 (Participation of DepEd Teachers to the National Educators’ Summit) Posted on February 18, 2015 by MSM13 Leave a comment 1573. Corrigendum to regional Memorandum No. 21, s. 2015 (Participation of DepEd Teachers to the National Educators’ Summit) Memorandum