This technique is another way of crocheting your first row after the beginning chain row. I use this technique in my free Charmed Wrap Bracelet pattern. You can use it with any crochet stitch and it produces a nice “v” or braided edge at the bottom of your chain which looks good without adding edging. Or, if you are adding an edge or joining, it will be easier because it produces “two loops” just like the top two loops of a single or double crochet stitch.
The following video demontrates the technique using single crochet:
This next video shows all the parts of the chain and three ways you can crochet into a chain with pros and cons of each way:
So, there you have it! You have a little more flexability by choosing the best technique for how to crochet that first row. If you are following a pattern that doesn’t specify a way, choose one that fits the needs of the finished item. Even if the pattern specifies which technique to use, so what? Use the one that you think would work better for you and the finished item.