DO MEMO NO. 251, S.2021. ONLINE SURVEY ON SENIOR HIGH SCHOOL EXPLAINER VIDEO (CAREER GUIDANCE MATERIAL FOR GRADE 10 LEARNERS) Posted on September 2, 2021 by DepEd Mandaluyong Leave a comment DO MEMO NO. 251, S.2021. ONLINE SURVEY ON SENIOR HIGH SCHOOL EXPLAINER VIDEO (CAREER GUIDANCE MATERIAL FOR GRADE 10 LEARNERS) Memorandum Numbered