Problem-based learning is a similar pedagogic approach, however, problem-based approaches structure students' activities more by asking them to solve specific (open-ended) problems rather than relying on students to come up with their own problems in the course of completing a project. Another seemingly similar approach is quest-based learning; unlike project-based learning, in questing, the project is determined specifically on what students find compelling (with guidance as needed), instead of the teacher being primarily responsible for forming the essential question and task.[19]