can I call this school and request a visit?
Your parents must make the call and the request if you aren't 18 years of age today.
If you are already 18 years of age, or will be 18 years of age tomorrow, you can make the call and ask.
Currently, I'm a student in school in Trenton, however, next year, I'll be moving to Montclair.
Your IP address reveals you're posting from Cleveland, Ohio.
A NJ school district owes you NO legal obligation.
You are a resident of Ohio, not NJ.
Again, if you area minor, your parents must make the call.
These days you must be prepared to show POSITIVE ID, meaning US gubmint or state gubmint issued ID with your picture.
A background check will be conducted to make sure you (and your parents) aren't prohibited from being around CHILDREN/MINORS.
Are they obligated to give me a chance to see what things are like there for a day?
They aren't obligated to do anything for you, as you don't reside in their district.
My wife is a high school principal, and their district encourages transferring students and their parents to visit their campuses and learn about the school.
Ask politely and you shall very often receive.
Or am I supposed to just go in blind for next year?
You could do that, too.
You are a mighty, powerful human being.
I'm sure you have the spirit to achieve whatever your mind can conceive.
If I call and get no response, is it okay to just show up in the morning and attend classes?
I doubt that the school would fail to answer during normal school hours.
You and your parents can show up unannounced, if you're polite and courteous, I'm pretty sure you'll get a tour.
I was hoping you all could lend some insight into the legality of going into a public school for the day.
You can't attend a school in a district in which you don't reside.
You'll probably be able to visit the school, take a tour, and discuss an educational plan with a counselor.