US terms: chain stitch (ch)
UK terms: chain stitch (ch)
This is marked by a small circle, ellipse or a dot.
A foundation chain starts off most crochet projects and indicates its width (which may be narrowed or widened). We use a chain to create, for example, turning stitches or making loops necessary for crocheting circles. Another way of making the base for a circle is by making magic loop.
We do not insert the hook into the crochet piece. The chain stitch is made by pulling the thread with the hook through a stitch already on it or through a foundation loop.