Tanya's class is helping me brush up on my rusty math skills. I've been thinking about it for a long time and I'm glad I found this course, which is not prohibitively expensive. I want to make only one suggestion, I think more references should be made during the lectures to the explanations given earlier, even briefly. it is true that one can easily go back and watch the previous videos again, but it could still be helpful to recall certain concepts more easily. Strengths are Tanya's friendliness and the clarity of the explanations.