To learn how to make the Knit one Stitch, I would suggest that you look at the attached links. I have given two YouTube videos, and one Yarn Council of America link, which shows pictures and gives explanations of how to make a 'knit stitch' and how to make a 'purl stitch'. It also shows an easy 'cast on' for knitting.
I think you are referring to the phrase "Knit one, Purl two".
SKP aka sl1, k1, psso(Slip Knit Pass) or (Slip One, Knit One, Pass the Slipped Stitch Over)
Type your answer here... one is knit and one is wind
stockinette or stocking stitch means knit one row, purl one row. So four rows are knit one row, purl one row, knit one row, purl one row.
to allow expansion in summer
I assume you mean stocking stictch? that is knit one row, purl the next, so that you have the wavy pattern on one Garter stitch is plain knitting every row.
Angela King has written: 'Knit One' 'Knit Three (Willow Books)'
==Your question is not quite clear. Knit one is usually followed by purl one or something similar. If your statement is correct, then I would think it means to stay with the knit stitch all the way across your project.
One way that one can find information on how to knit a scarf is to take a knitting class. A common and basic knitting starting project is to knit a scarf, so most likely, the teacher would start off with something like that.
one inch
Harry Styles
Harry Styles