EdX Pre-Calculus Course (free course, college credit eligible for a fee)
MIT Single Variable Calculus (Calculus 1) (free full course)
Essence of Linear Algebra (video series)
MIT Linear Algebra (free full course)
supervised, unsupervised, and reinforcement learning
support vector machines
Random Forest Simple Explanation note: whether an explanation is ‘simple’ or not depends on a lot of factors that can have nothing to do with the person learning, so don’t let the title intimidate you if this is not the explanation for you!
jupyter notebooks in the “Machine Learning with scikit-learn” series, by Jake Vanderplas: