Watch the films online here!
(The American English version contains
Clicking on the language of your choice will bring
up the player. Click on the triangle in the center of the
start chapter 1.
these icons, from left to right, you can choose the chapter, choose
subtitles, choose the video quality, watch later, watch in YouTube, and
English language films are also available at Isallaboutmath.com, Julio
de la Yncera's site.