Self-assessment is a process where learners evaluate their own progress and performance based on specific criteria. In language education, self-assessment helps students reflect on their language skills, identify strengths and weaknesses, and set goals for improvement. Tools for self-assessment include checklists, rubrics, learning diaries, and self-reflection questions. Encouraging self-assessment promotes learner autonomy, metacognition, and a deeper understanding of the learning process. It helps students take responsibility for their own learning and become more active participants in their education.