As a TA, how should I address the professor's difficult curriculum? This is my first semester being a TA for this course. However, the professor has changed since I took the course. The content seems to have grown in difficulty since I originally took the course, and I feel that the professor has been giving inadequate or unnecessarily difficult problems to get across relatively simple concepts in lectures, which I then have to explain in tutorials.

I have compared to my previous notes and although the major concepts are the same, the examples used are overly complex, and I can see some students are falling behind as a result. Is there an appropriate, professional way to get this message across to the professor without sounding like I am not familiar enough with the material for the position as an assistant for this course?
Begin with the assumption that there are good reasons for the change: professors rarely make a large change in a course without thinking about why (it's just too much work to bother).  Rather than beginning with your judgement (which might or might not be justified), open with an observation and a question, something like:


  I was looking at my old notes, and I've noticed that the examples have changed a lot and gotten significantly more complex.  I was wondering if you could tell me a little bit more about how you've changed the course and why?


Maybe the professor actually wants the class to be harder; maybe they just wanted it to be more current and don't realize it became harder as well; maybe you are overlooking something... all of these are possible, and until you understand how the professor is thinking about it, you don't have enough information to figure out how to proceed.