FOR ELEMENTARY AND SECONDARY SCHOOLS: CHANGE OF DATE AND ADDITIONAL INFORMATION RE: CONDUCT OF MOTHER TONGUE BASED-MULTI LINGUAL EDUCATION (MTB-MLE) SEMINAR-WORKSHOP DATED OCTOBER 8, 2019 Posted on October 31, 2019 by DepEd Mandaluyong Leave a comment AD19-307. CHANGE OF DATE AND ADDITIONAL INFORMATION RE: CONDUCT OF MOTHER TONGUE BASED-MULTI LINGUAL EDUCATION (MTB-MLE) SEMINAR-WORKSHOP DATED OCTOBER 8, 2019 Advisory