How to fill the current or most recent year courses part in common app

Hi, I’m an international student from Turkey. Our courses are very different from their american counterparts. We don’t take college courses during high school. We do have advanced subjects for example we took calculus in 12th grade. I don’t know how to put these courses into the system. Can I leave it blank? Do you have any opinion on what I should do?

Our kids also often take Calculus in 12th grade. I don’t understand your problem. List the course names that also will be listed on your transcript. If you don’t have enough space (lots of courses), use the Adfitional Information section to finish your list. You should not leave it blank, or they will think you are not taking any or many classes.

Thanks.