For Public Secondary Schools: CORRIGENDUM TO THE UNNUMBERED DIVISION MEMORANDUM RE: DEMONSTRATION TEACHING IN ENGLISH GRADE 10 DATED JULY 24,2017 Posted on July 28, 2017 by DepEd Mandaluyong Leave a comment 17-07-113. CORRIGENDUM TO THE UNNUMBERED DIVISION MEMORANDUM RE: DEMONSTRATION TEACHING IN ENGLISH GRADE 10 DATED JULY 24,2017 Memorandum