slip knot start and chain stitch
Slip knot and chain stitch are the starting methods for almost all flat knitting. Let's take a look at the detailed step-by-step tutorial, and there is also a video demonstration at the end.
Step-by-step breakdown diagram

1. Wrap the yarn around the crochet hook as shown in the picture (the video demonstrates two methods).
2. Hanging wire
3. Following the red arrow, pull the hanging wire of 2 through the coil of 1.

Tighten the knot, and the slip knot start is complete.

 Next, attach the wire and pull out the coil. 

 The first lock pin is now complete. 
 Repeat the previous step four more times to complete the five-chain stitch demonstration. A loop on the hook does not count as a chain stitch.