Defining Methods in Methods?

This seemed like a pretty straightforward challenge, with an if statement pointing to two methods already laid out in the class. But I'm getting "Exception: name 'praise' is not defined" I can't figure out what definition is required, or if I need to pas arguments through, or what. It's got my head spinning.

I've watched the two videos leading up to this assignment over three or more times each and I'm not finding any clarification, The questions and answers other are exchanging don't seem to pertain to my issue, or I'm simply not understanding them either. Am I missing something in these lessons, or did I miss something farther back? I'm totally flummoxed.

class Student:
    name = "Your Name"

    def praise(self):
        return "You inspire me, {}".format(self.name)

    def reassurance(self):
        return "Chin up, {}. You'll get it next time!".format(self.name)

    def feedback(self, grade):
        if grade > 50: 
            Student.praise()
        else:
            Student.reassurance()