Nastassia,
All students rely on visual learning to a great degree. I always state I reserve my right to reposition students or assign seating as the need arises. This can be to assist a student who can benefit from being closer in order to see, or it may be to break up distractions, such as talking with a classmate. I have told students, "if it distracts me, it distracts others". There's a time when informal chatting is permissible but not when when I'm lecturing.
Barry Westling
