My 8th graders were first quizzed on how well they could draw a self-portrait with a mirror
Afterwards, I we spent the remainder of class working with guided insturction and I showed them how to draw a portrait in correct proportion
About a week or so from that, the students spent everyday working on a dilation from a photograph
They drew a 1" grid on a 4x6" photo, and then enlarged it to a 2 x 2" grid on a 9 x 12" piece of a paper.
I was really amazed with the work they pulled off. Check out some of their progress from a pre-skills, to guided to final work in my photo montage video