Often you will find yourself having an hour to spare between lectures. I spend most of this time upstairs in the students union where there is lots of places to sit and do work. It’s comfortable there and also you can go grab a drink or a chocolate bar from a vending machine if you should need! I personally find doing work in your breaks is very beneficial, as it leaves me time to do other things at home in the evenings. I am also already in the maths ‘zone’ when I’m in university, and so often I get the work done quicker!