Learn Swedish: Kommer du till skolan på tisdag? - Are you coming to school on Tuesday?

In Swedish, you create a yes/no question by putting the verb first, followed by the subject. Instead of using a helper word like "Do" or "Are", you simply swap the order and literally ask "Come you to the school?".

Why does this sentence use skolan (the school) instead of just skola (school)?

In Swedish, it is standard to use the definite form (adding the ending to mean "the") for institutions you go to regularly. You literally say "Are you coming to the school?", whereas in English we drop the "the" and just say "to school".

Is på the correct word for "on" when talking about days of the week?

Yes! You use the preposition på before a day of the week to say you are doing something "on" that day. Using på with the basic form of the day, like på tisdag, specifically refers to the next upcoming Tuesday.

Why isn't the word for Tuesday (tisdag) capitalized here?

Unlike in English, Swedish days of the week, months, seasons, and languages are always written in lowercase letters, unless they happen to be the very first word in the sentence.