Does it matter which way you turn your work in crochet?
It may not seem like it matters, but turning in crochet ought to be done consistently each time. That is, you should be turning the same way every time you turn to the next side. The turn creates a neat edge, which is important if you are joining two pieces or seaming garments.
How do you do a backward single crochet?
In standard single crochet, you insert your hook into the next stitch to the left and create your sc stitch there. In reverse single crochet, you insert your hook into the stitch to the right and create your sc stitch there.