One skein and a pair of US 8 needles is all that you need for this scarf. I'd done the triangles within a short row rectangular scarf before, so it was interesting to see the turns that appeared. Essentially you cast on 20 stitches, start by knitting 2 stitches, do a wrap and turn, and going back, then adding 2 more stitches each time until you reach 18. You work backwards back to 2 stitches and then go to 20 stitches and change direction. After a few sections, it gets fairly easy to ready your knitting to know where you are.
So here is the pattern:
CO 20 stitches