English: These include the development of materials for public school teachers and learners and the curation of supplementary sources and familiarization materials, which the regions used for their field preparations.
Filipino: Kabilang dito ang paghahanda ng mga materyal para sa public school teachers at mga mag-aaral, pati na rin ang pagtitipon ng mga supplementary sources at familiarization materials na ginamit ng mga rehiyon sa field preparations.