DM NO. 1301, S. 2026 MASTERCLASS ON DESIGNING MATHEMATICS LESSONS THROUGH EXPLICIT INSTRUCTION FOR GBF CLASS BUILDER MATH TEACHERS Posted on September 24, 2026 by DepEd Mandaluyong Leave a comment DM NO. 1301, S. 2026 MASTERCLASS ON DESIGNING MATHEMATICS LESSONS THROUGH EXPLICIT INSTRUCTION FOR GBF CLASS BUILDER MATH TEACHERS Memorandum Numbered