A rubric is a scoring tool used to evaluate student work based on specific criteria. It outlines the expectations for an assignment and provides a clear framework for assessment. Rubrics can be used for various types of assignments, including essays, projects, and presentations, helping both teachers and students understand what is required for success. Rubrics typically include different levels of performance, often ranging from excellent to poor, along with descriptions for each level. This structured approach not only aids in grading but also offers constructive feedback, guiding students in improving their skills and understanding of the subject matter.