page of algebra notes

I've found that in order to tutor my daughter in Algebra, I need to be taking notes and reading the lectures along with her. It's strange even though I used to breeze through this stuff, I find it hard to do. I remember none of it. They say that cognative ability decreases once you leave your 20s. In this particylar case, I'm living proof. My 17 year old self would math circles around me now.