This document provides guidance on giving constructive feedback in university teaching. It discusses principles for effective feedback, including having a clear aim, being based on observations, and considering when and where it is delivered. Feedback should support learning, problem solving, skills development, and self-esteem. Examples of feedback questions are provided. Key recommendations for delivering feedback include being descriptive, specific, focused on behavior, and mindful of timing and the receiver's needs. Feedback givers should check for understanding and allow self-assessment.