How to work Chain Stitch or Base Stitch (ch)
In crochet the equivalent to casting on in knitting is the foundation row which is worked in chain stitch. A row of these stitches are formed and normally begin with a loop secured by a slipknot.
1,Make a slip knit on your crochet hook and then wrap the yarn over the hook in an anticlockwise direction (or hold the yarn still and manoeuvre the hook.)
2,Draw the yarn through to form a new loop without tightening up the previous one.
Note: Unless otherwise specified, always wrap the yarn the same way round. Make as many chains as required to form your foundation or base row. Keep moving your left hand position up close to the hook every couple of stitches or so by using a right hand finger tip to hold down the loop on the hook, while you do so.
Counting Your Chains: do not count the initial slip loop as a chain. To count them afterwards, first make sure that they are not twisted and that you are looking at the "front,"see below, then count back, but ignore the loop still on the hook.
Chain Stitch Front
Chain Stitch Back