Is this an unreasonable professor

<p>"The kind of classes where 50% ish is the norm are classes where you aren’t taught how to do every problem. You are presented a problem on the test you have never seen before and are expected to create the solution on the fly. A prof can make this challenge as great as he/she wishes and shoot for 90%=A, 50%=A, 25%=A. "</p>

<p>I understand this concept but just dont know how it benifits students if the class fails.</p>

<p>I did look up professor and he does not appear on rate my professor. In a seach of the college website it shows all his other classes are graduate level. This is his only undergrad class. Maybe what works for his Grad. students is not working for his Freshman students?</p>