The math department at Timberline High School, in Boise, ID shares their motivation for and results of using student self-assessment in their classes.
Our department started using student self-assessment on our quizzes several years ago. This shift from a teacher telling students what they know and what they don't know to students determining what their level of understanding is has had a huge impact on student agency and efficacy. Student know where they are at and where they need to be in the process of learning the material. This shift in self-assessment was lead by a team of teachers at Timberline.