<p>I completed the Additional Information explaining some of the key-facts of my education system that drastically differ from the ones in the US because I couldn't fill in some of the information in Common App. (for example, AP classes etc. because they don't exist in my country. I also listed the additional subjects I'm taking this year because there wasn't enough space in the Academics section.)</p>
<p>Is that ok? I know a lot of people describe some unusual circumstances, but I already described those in personal and additional essays. I have a feeling that the adcom won't be able to interpret my application correctly unless I write these facts. Am I doing the right thing?</p>