The single crochet (abbreviated sc) is one of the easiest and most basic crochet stitches. This short, compact stitch creates a tight and dense fabric.
You can work it in rows and in rounds and combine it with other stitches.
How to make the single crochet (sc)
Insert hook in the specified stitch, yarn over your hook, pull through the stitch, yarn over again and pull through both loops on your hook.
The single crochet (sc) is referred to as double crochet (dc) in patterns using the British terminology. Here you can find a helpful US to UK conversion chart.