SMX Convention Center, SM Lanang Premier, Davao City May 4, 2018 President Rodrigo Roa Duterte spoke before the elementary school principals during the opening of the 37th Principals Training and Development Program and National Board Conference at the SMX Convention Center in SM Lanang Premier, Davao City. The Philippine Elementary School Principals Association (PESPA) is continue reading : 37th Principals Training and Development Program and National Board Conference