Experimental life-drawing

This is going to be my experimental life drawing post from Today. Ashley, my teacher, wanted us to focus on form, rather than shape. The difference he explained, is that normally we draw Shape rather than Form, an most common linear outline drawing of a figure expresses its shape, but looking at prints of sculptures for example the form of the figure is much more evident. After showing us a few examples, of how different artists portrayed form through drawing, he set us an exercise: to draw the figure using an imaginary string that wraps 360 degrees around the shape. It was very hard to imagine, and even harder to express, and despite my reluctance i gave it my best try. Here's my first attempt:

Which wasn't the right technique at all, as I had to express the form with one continuous line/coil. So I tried again, focusing on the lower torso and legs:

This was much closer, to what was asked of us, and although I didn't quite see it in class, looking at it now I realise how much closer to a three dimensional form that drawing is. I tried the same technique on the hand, and then using fewer "coils" to remove unnecessary information:

The next exercise was to try and draw the pose, using as few geometric shapes as possible, to simplify  and represent the pose, as a cardboard prototype:

And the last drawing, is just a sketch i did of the model's profile, after i finished the polygon pose.