What does it mean to chain 1?
Look at your pattern: at the end of the row it may say ch 1, turn.” That means it is time to turn the work so you can make another row of stitches. You need to work the chain 1 to get your yarn high enough to begin the next row.
What is considered a stitch in crochet?
A crochet stitch is a result of moving a crochet hook through yarn to achieve a specific shape and look in your crochet pattern. Its abbreviation is st for a single stitch and st(s) for more than one stitch.