Get your math skills back in shape with these tutorials by Mark Bieber.
Okay, so this might not be the most exciting topic for animators, but it is super-important for those of you who want to have a technical edge as an animator, someday. As such, I have started a Playlist of tutorials to help artists get grounded with some important math concepts that can help you with your animations. Even if you only watch the first video about radians, in case they don't make sense, this one topic alone will prove useful for those of you who might be making games, as radian angles of measure are the default argument when rotating objects using Python code. Plus, as I'm an artist as well, I keep the lessons nice and simple.
Hope it helps.