If you have no idea on how to braid or cornrow, click this
First things first, make sure your hair is moisturized, detangled and stretched out before any attempts to manipulate to avoid breakage.
Before learning how to cornrow, you must know how to braid.
0:35- Love Layefa gives a quick tutorial on how to braid. You section out a small piece of your hair then divide that section into 3 subsections. Using her visual presentation and following her directions, you should be able to have a nice-looking braid.
1:19- Tutorial on cornrow
Hope this tutorial was helpful. Please let me know in the comments below what else you would like to see.