This document discusses formative and summative assessment. Formative assessment occurs during instruction to provide feedback and inform teaching, while summative assessment evaluates learning at the end. Key differences are that formative assessment is not graded, focuses on process, and provides descriptive feedback, while summative assessment is graded, focuses on products, and provides evaluative feedback. The document also outlines best practices for assessment, including communicating goals to students and involving students in self-assessment.