This wonderful artist and blogger teaches about 400 kids at a K-6 elementary school in Goleta, CA. Her collection of art lessons stem directly from her art room. You'll find hundreds of free, classroom-tested lessons under "Art Lessons" in the menu bar. For more detailed tutorials, instructions and handouts, you can purchase her PDF's (under "Products").
She includes a very handy basic art supply list and SO man great resources! Check out her blog at http://www.deepspacesparkle.com/blog/
Keep up the good work!!!