About Lesson
Elementary Linear Algebra: Applications Version, 11th Edition (http://bcs.wiley.com/he-bcs/Books?action=index&itemId=1118434412&bcsId=8466)
Intro to vectors(https://www.khanacademy.org/computing/computer-programming/programming-natural-simulations/programming-vectors/a/intro-to-vectors)
More vector math(https://www.khanacademy.org/computing/computer-programming/programming-natural-simulations/programming-vectors/a/more-vector-math)