FOR PUBLIC ELEMENTARY AND SECONDARY SCHOOL HEADS/OFFICERS IN-CHARGE: CANCELLATION OF THE SEMINAR-WORKSHOP ON IMPROVING MATHEMATICS INSTRUCTION AND STUDENT COMPREHENSION THROUGH THE USE OF MANIPULATIVES Posted on March 11, 2020 by DepEd Mandaluyong Leave a comment 20-03-46. CANCELLATION OF THE SEMINAR-WORKSHOP ON IMPROVING MATHEMATICS INSTRUCTION AND STUDENT COMPREHENSION THROUGH THE USE OF MANIPULATIVES tagged with Change Memorandum Unnumbered