Your academic experience will vary greatly based on your host country. Depending on your own academic background, you may find classes in many parts of Europe and Asia to be more challenging, while in some Latin American or African countries, the academic experience could be less demanding. Either way, going to school abroad is an immensely effective way to learn another language. Most classes will be taught in the local dialect, and sure, you might be confused at first! But if you’re like most AFSers on year or semester programs, by the midpoint of your program or even sooner, you shouldn’t have much of a problem following along. Just remember: it’s all a part of the immersion experience.
Your specific school placement will depend on a lot of factors, including where your host family lives. You may or may not attend the same school as your host siblings, if you have any. No matter what, you won’t have to pay extra for your schooling – that’s all included in the program fee (though you may need to buy a uniform, which is not included).