Adult learner here looking for the best approach to review Algebra from scratch. I've been going through the modules by Grade (Algebra basics, etc) but recently found the `All Algebra` content - https://www.khanacademy.org/math/algebra-home
Wondering what would be the best `from scratch` approach? The `all content` section seems to be an in-depth review of all topics, but wondering if those are structured on a mastery-basis (as in: each section builds upon the previous) or if it is better to stick with the `by grade` structure (e.g. algebra basics, algebra 1, algebra 2, etc).
Appreciate any responses!