Mind reading
The reason I would choose such a typical super power is because it's the one that would come in very useful in the classroom. For example, if I do not understand something I'm reading or doing I could just read other classmates minds to see how they're doing it or what they think of it. Also, when the teacher walks around looking at students work they probably think about the answers or the correct way to interpret/ do something and I would be able to hear that and understand how to do it better.