Even the largest highest schools have moderately sized classes. Nonetheless, there are some differences that can become quite a challenge if you re not prepared. There is also a general expectation that you be prepared to discuss readings and assignments each day you have class. It is not uncommon for professors to grade you on participation, either. One of the difficulties we have with large classes is that we re not all that well prepared to walk into a class of 300 students.
Many high schools have an entire senior class smaller than that.
I ve heard it said that only small classes put more pressure on you. I m not sure that s true. Larger classes place a different kind responsibility on your shoulders. Since class participation is not a factor you really are going to be measured on your knowledge of the lecture and course readings. I ve also seen many students lulled into a false sense of security because attendance wasn t taken in their large classes.