I find it is easier to teach myself things out of the book because of the mistakes. I'm convinced that there are no grades... whatever you get the 1st quarter is your grade.
Mrs. Scott was one of my best math teachers I have had. She was willing to take time and explain the material with me in order for me to get an "A".
Mrs. Scott can be a good teacher but can also be a really bad teacher. Sometimes she's incredibly helpful and other times she's not helpful at all.
Fairly easy is if you already understand the material. Otherwise...