I had the chance to teach how to make backgrounds for cartoons, in Boxel Workshops, in Tijuana.
Here is a little background I've made to inroduce my students to the different steps and jobs concerning BGs, in a traditional way.
(click to enlarge)
The point of this class is also to introduce the students to concept art, story-board, layout, clean, composition, colors, animated effects and compositing. I think it is important for them to learn to use as much traditional artistic skills as computer skills. So we're mixing both in this workshop.
They've been making an awesome job!!! =)
see their work here