You can give feedback on courses via Peppi. The system works based on course registrations, so students are able to give feedback on all courses that they have registered for. Continuous feedback can be given throughout the course, and the teacher also collects feedback at the end and possibly in the middle of the course. The feedback is pseudonymised, meaning your identity is not visible for the recipient. The university is legally obligated to collect course feedback, but giving it is optional. It is very important to give course feedback, as teaching is developed based on it.
More information and guidelines on giving course feedback on the university website