FOUNDATION CHAIN -YARN OVER INSTRUCTIONS Step #1: FOUNDATION CHAIN - CHAIN STITCH INSTRUCTIONS Step #1: Step #2: 10 Wrap the yarn from back to front over the hook (or hold the yarn still and maneuver the  hook). This movement of the yarn over the hook is used over and over again in crochet and  is usually called “yarn over,” abbreviated as “yo.” Yarn over and pull the yarn through the loop already on the hook to form a new loop. Be  careful not to tighten the previous loop. Repeat to form the number of chains specified in the instructions. Do not count the slip  knot as a stitch.