This document discusses how the Open University uses Moodle quizzes and how they help students. It notes that quizzes are a major part of assessment and that analyzing quiz data provides insights into student learning. Completing quizzes and interactive computer-marked assignments is linked to higher completion rates and exam scores. While computers cannot fully replace teachers, they can effectively grade short answers, math problems, and code with high accuracy. The quizzes provide formative and summative assessment that support learning when combined with analysis of student performance.