If you don’t know what this is, I urge you to sign in and have an explore. As well as watch this playlist that I was introduced to by a classmate. I love Sal’s delivery and modesty.
I just signed up as a teacher and coach… and for the experience tried out a Trig lesson (because I am terrible at it)…Its great, he’s upbeat, confident, the presentations and tips are aesthetically pleasing. Take a look…learn something for yourself! The program is slick, I even got some funky points for getting a question right! Enjoy.