Use cases
Mode: Lecture or class
Keep up with the lecture and ask better questions
Live transcription, explanations of terms as they come up, and study notes when class ends.
Before
Upload the reading and the slides so explanations use your course's own material.
During
Terms you don't know are explained in a line, and you can ask anything without interrupting.
After
Study notes in the order the topics were taught, with what the lecturer said would be on the exam.