Pharmacology Classes

Finally I get to come back earlier(at 3pm), after having such a heavy and tiring week, I couldn't be happier to finally get some rest before studying. Classes on the 3rd year is really tough, materials that we need to study for each classes are also in large amounts.
Pharmacology is one of the more important subjects in my 3rd year of studies as it teaches us the actions of drugs on our body and what each kind of drug helps to cure the diseases.
Though, everything turn south when the teacher we got for our practical classes were the ex-Rector's daughter(he retired only this year). Not to be rude or anything but I really think that she isn't fit to be teaching and to make matter worse she is our lecturer as well.
Let me give some examples on how she is like.
Last week while having lecture, we had a definition for the word "addiction", but instead, in the slide it was written as "addition". when one of us asked her is it addiction or addition, she said it was addition and look back into slide and read the definition out. She didn't even know what she was reading as if she knew it would have been obvious as the definition given was about addiction and not addition.
Furthermore, on the same lecture, for the last slide she was giving another definition. Let me show you what was written on the slide. The definition for drug dependence is "due to repeated administration, certain drugs may make the individual both"
This is what that was written on the lecture slide and what she said. She didn't even realize that the definition was awkward and incomplete. After referring to senior notes, I found out that the definition was incomplete and was supposed to be "due to repeated administration, certain drugs may make the individual both physiologically and psychologically dependent on them."
Furthermore, on classes, we are supposed to start class at 8am but she said we could come at 8.30am (no complaints here) but she only comes in at around 9am and for example today, after she came in she asked us to do the independent work according to the methodicals, left and came back 30min later only to say "ok, now break".
Then she came back in at 10.05am and gave us a written exam and after the exam we were dismissed!
How am I supposed to learn stuff when she gives lectures of this standard and conduct classes like this ? Self-study is needed I guess.