How to crochet a turning chain
Since crochet is always worked in one direction, once you've reached the end of a row, you'll need to turn your work so that you can continue crocheting in that same direction. Watch this video to learn how to move onto the next row when crocheting a flat piece of single crochet stitches:
How to crochet a turning chain (step-by-step with photos)
The ch in the “ch 1 and turn” is just there to add height to the row. It doesn’t count as a stitch, so it isn’t added to the total number of stitches in the row.