FOR PUBLIC ELEMENTARY SCHOOLS: SEMINAR-WORKSHOP ON IMPROVING MATHEMATICS INSTRUCTION AND STUDENT COMPREHENSION THROUGH THE USE OF MANIPULATIVES Posted on February 28, 2020 by DepEd Mandaluyong Leave a comment 20-02-100. SEMINAR-WORKSHOP ON IMPROVING MATHEMATICS INSTRUCTION AND STUDENT COMPREHENSION THROUGH THE USE OF MANIPULATIVES Memorandum Unnumbered