For Public & Private Elementary Schools: DepEd-MTAP Training on Enhancing Strategies in Teaching the Least Mastered Skills for All Grade 6 Mathematics Teachers in the Region Posted on July 9, 2014 by MSM13 Leave a comment 693. DepEd-MTAP Training on Enhancing Strategies in Teaching the Least Mastered Skills for All Grade 6 Mathematics Teachers in the Region Memorandum