After working with Mona Brookes' book "Drawing with children" for a little while, we were searching for new challenges, and we discovered these wonderful step by step drawing videos on You Tube. They are very clear, with no talking at all, and can be followed very easily, at one's own pace. They are focused on drawing animals, but there is such a large variety that there is something for every taste.
This is what my 9 year old draw in around 20 minutes...