Honestly, guys, you need a way for students to give feedback on each slide/question. I did pass all my tests first try but it wasn't without struggle. While I was taking my practice tests I was constantly questioning if I was wrong or if there was something wrong with the question. It's one thing if it's just worded weirdly but that's not what I'm talking about, I mean the questions that say something different than what was in the text or a question that didn't refer to the text in that chapter. Also in addition to that the liked text to incorrect questions on the cumulative tests often did not hold an explanation to that question, which for me was always a dead ringer of there being something fishy with that question.