“k1, yo, k1 into the same stitch” is basically a double increase meaning that increases into the one stitch will result in three stitches, all originating from the same stitch. Click above to watch the video tutorial!

Here’s how to work the double increase:

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Step One

Knit 1...

Knit the first stitch on the left-hand needle, just as you normally would. But then don’t slip the stitch off the left needle.

Step Two

yarn over...

Keep that stitch there on the left needle while you work a yarn over around the right needle.

Step Three

knit 1 into the same stitch

Then put your right needle back into the same stitch on the left needle and knit it again and slip that stitch off the left needle. Now when you look at your right needle, you’ll see the first stitch that you knit — that’s ONE, the stitch that you created with the yarn over — that’s TWO, and the stitch that you created by knitting into the same stitch again — that’s THREE. So one becomes three.