Concepts: Kepler's 1st Law, Kepler's 2nd Law (time, are, distance), Kepler's 3rd Law (Period, Semi-Major Axis) -------------- Part of a Blended Classroom taught at Millard West High School. Produced for Millard Public Schools by Justin Higgins. Lesson Plans and how the course is structured: http://sciencewithhiggins.com/classes/astro/