In the country I did my PhD in, at a lot of courses there are lectures by a professor covering theory, and then lectures by a PhD student which cover exercises, examples, clarifications, etc. Those are lectures which require preparation, standing in front of a full class, just like the "main" lectures. My question is, how should I refer to it in my CV. Maybe if I write "Teaching Assistant", in the US it might be understood as something with less weight than what I described?
Thanks