Drawing tutorials on Youtube

I use have use facial feature drawing tutorials on Youtube for Middle school art to begin our self-portrait unit.  Even though I could draw and show the students different techniques, they seem respond to the video.  It is kind of like bringing an expert into your class to demonstrate, rather than hear from the small old art teacher everyday!  The video is in time lapse.  They students like the fact that they can watch it quickly, then have the options of watching and pausing when they draw.  To direct the students to the link, I make a word document, and hyperlink the different videos and post this on my webpage or link the sites to my webpage.