This document outlines guidelines for classroom assessment in the Philippine K-12 education system. It defines classroom assessment as an ongoing process of gathering qualitative and quantitative information about what students know and can do. The purpose is to inform instruction, provide feedback to students, and report progress. Formative assessments are used for learning, while summative assessments measure achievement at the end of a unit. Student performance is evaluated based on content and performance standards, recorded as grades, and reported to indicate promotion or retention.