So it's about time to enroll in classes for the fall semester, and I've finally gotten to the point where I can actually choose my physics classes (instead of falling a specific track of classes). It looks like my choices are: 1) Physical measurements, the advanced laboratory class. I have to take this eventually. 2) Mathematical physics, which supposedly teaches all the math you need in other physics classes. 3) Astrophysics 4) Thermal physics 5) Electricity and Magnetism (I have to take this eventually). 5) Introduction to elementary particle physics. The fact that it's called "introduction to elementary" kind of scares me. Any thoughts?