This document discusses concepts related to classroom assessment. It defines key terms like classroom, measurement, assessment, evaluation and describes different types of assessment like formative, summative, norm-referenced, criterion-referenced. The purposes of assessment are listed as checking student strengths and weaknesses, making learning effective, and obtaining evidence of learning. Principles of effective assessment include that it should be for learning, not just of learning, and should be reliable, valid, fair, consistent and enhance student motivation.