Python -> Object Oriented -> Method Interactivity

In this challenge, you are asked to create a method that takes a "grade" argument an addition to the self argument. In the video FOLLOWING this code challenge, titled "method arguments" you teach about what is required in the code challenge before it. Is this on purpose? To provide coding challenges on things that haven't been covered yet to inspire students to figure it out on their own? Because from what I understand about methods, the Self argument is always passed first, but I don't see that knowledge presented anywhere before the code challenge. Which could lead to a frustrating situation, because in the code challenge it asks for the feedback method to take a grade argument, and then reminds the user to use the self argument as well. Which seems like the self argument should go second(if you didn't know any better). Ok, I'm done. Just curious. Thank you!