Segment, Ray, Distance on a Number Line

I introduce the basic geometric figures of segments, rays, and distance on a number line. This lecture includes discussions about the Ruler Postulate, Segment Addition Postulate, Congruency is defined, Midpoint of a Segment, and finally Bisector of a Segment. Find free review test, useful notes and more at http://www.mathplane.com/ If you'd like to make a donation to support my efforts look for the "Tip the Teacher" button on my channel's homepage    / profrobbob