Here's some of the things to know about American culture
US culture focuses on the individual (what I want to do), which may be different from your culture where you focus on what the group wants.
Everything may seem big to you - food portions, large spaces, big trucks, big parks. Americans often think bigger is better.
People will say and print things about how they disagree with the government. The First Amendment to the Constitution protects both freedom of speech and assembly.
Madison is in the Midwest where strangers will sometimes make conversation with each about non-controversial topics like the weather or sports. Don't be alarmed if a stranger starts to say something to you.
There are fewer holidays in America and you don't work on them.
No work on Saturdays and Sundays! (though, you may still have to work on homework.)
Be On Time
It can be insulting to be late as it shows you do not respect or honor their time.
Americans can be conscious of "wasting" time and focus on efficiency, which is not always good.
Keep an eye on your kids!
Individualism shows up in parenting
In the US, other parents most of the time are not involved in looking after or parenting another person's child(ren). You are expected to look after your own child(ren)! This is different from many cultures, where the community is expected to help parent the child.
Several 110v outlet converters
Mementos and items to make you feel at home
Passport, student visa, proof of identity
Clothing appropriate for your journey and for the season you're arriving in.
Everything else can be bought in America!