This document discusses assessment and evaluation in language teaching. It defines assessment as a formative, ongoing process to gather information on student learning, while evaluation is a summative process to determine what students have learned at the end of a course. The document also outlines key differences between assessment and evaluation, including their timing, focus, relationship to students, and findings. It emphasizes using assessment and evaluation to improve teaching and learning through defining learning outcomes, continual progress assessments, and rigorous evaluations of outcome achievements.