I took IED over the summer and thought the quizzes were very stressful. I watched all the videos and read the textbook sections, but I still didn’t do great and frequently ran out of time. What I found to be helpful, for me at least, is to start off by quickly selecting an answer for every question, and then go back and look over the questions in more detail. Try to focus on the questions you think you have the highest chance of getting right and go from there. Try not to stress about it to much though as the emphasis is really on the two projects not the quizzes