This video covers the Ruler Postulate, which is basically "geometry speak" for finding the distance between two points on the number line by subtracting their coordinates. Good stuff!
OOPS! To create playlists you must logged in.
If you do not have an account, you should get one, because it is awesome! You can save a playlist for each test or each chapter, and save your "greatest hits" into a "watch right before the final" list (not that we recommend cramming, but when in Rome...)
