HELP ME my Law Lecturer teaches the wrong readings

Hi everyone,

I am facing a bit of a dilemma. My law lecturer has been teaching the readings for the wrong class. And worst of all, someone else told them she was teaching the wrong content today in class, and they said that there were only a few slides on that content…But we were already nearing half way point in the class + the rest of the class was the wrong content too. I feel like for this reason I can’t participate well, bc i dont prepare for the class she teaches, and i am so confused every lecture

I have no clue what to do./how to approach this, bc i don’t want the lecturer to think I am rude/take it the wrong way