In doing so, he elevated Lombard's work from a mere theological resource to the basic framework of questions and problems from which masters could teach. The commentary (or more correctly titled a Gloss) survived in student reports from Alexander's teaching in the classroom and so it provides a major insight into the way theologians taught their discipline in the 1220s. As is the case with Glossa and Quaestiones Disputatae, much of his work is probably written in the form of notes on his oral teachings by students, though the content is definitely his.
