I am an undergraduate student at imperial college London studying electrical and electronic engineering. The way my lessons would work is as follows. I like to start off with a excersises from the previous lesson to gauge how much a student had understood or if a recap is required. Then we would move onto the main lesson where I would give an introduction to the student. Along the way the student can ask many questions as I like to teach on the basis that I am an assistant to the student. The student will then move onto questions which we will mostly work together on if required. I will mark the work and if we have time we can always end with a game to increase rapport between the student and me.