Knit Tutorial - Knitting a 1x1 rib
The 1x1 rib refers to a section of knitting made up of one knit column next to one purl column.
To achieve this, you need to repeatedly work one knit stitch followed by one purl stitch until the end of the row/round. In the next row/round, you need to make sure to stack your knit stitches on top of your knit stitches, and the purls on top of purls.