This document introduces rubrics as a criterion-referenced assessment tool. It defines a rubric as a measurement tool that describes criteria against which a performance or product is compared and measured at different levels of achievement. The document discusses two types of rubrics - analytic and holistic - and some advantages of using rubrics such as providing a common language for assessment and transparency for students. It provides guidance on developing a rubric, including identifying what to assess, looking at example models, defining characteristics and mastery levels, and describing each level. It also stresses ensuring reliability by having markers interpret the rubric consistently.