Once you’ve cast on and knit for awhile, you’ll need a way to remove the live stitches from your knitting needles so that you have a project you can actually use. Binding off, or casting off, is how you accomplish that.
As with casting on, there are dozens of ways to bind off, but I’m just going to teach the most basic one.
Step 1: Knit two stitches.
Step 2: Insert the left needle tip into the first stitch.
Step 3: Pull the first stitch up and over the second one, pulling it off of the needle.
Step 4: Knit one stitch.
Step 5: Repeat step 3.
Repeat steps 3 and 4 until you’re all out of stitches. By pulling the stitches over one another, you secure them so they won’t unravel your work. When you get to where there’s just one stitch left on the right needle, cut your yarn and pull the tail through that last loop, creating a knot to secure it.