Ok, so here is hot we did this:
On freshly washed and properly moisturized hair, I made a "V" shaped part in the front of the head, the point of the "V" towards the crown of the head. Because Li'l Bit's hair is short (shoulder length when stretched), braiding the hair into this shape made the perfect length bangs:
I then made a part down the middle of my daughter's head, sort of extending from the point of the "V". I braided from the sides toward the center, but I made the braids in a sort of brick pattern. That is, the braids on the left and right sides of her head did not meet in the middle, they were on slightly different levels. Its hard to see in the pictures, but braiding this way makes the center look 'fuller' and makes it less difficult to see the parts.
Just for fun, on every other braid, I added beads to the cornrows. To do this, I just cornrowed the hair until I was at the point where I wanted the bead to be. Then I stopped braiding, slid the bead on, and continued braiding where I left off.