It develops math skills. A knitting project is geometric.
The edges look a bit ragged on this sample (this is one potholder—the top photo is the reverse side to the bottom photo). This is knit out of dish cloth cotton, a fiber not nearly as forgiving as wool. I know that the cast-on and bind-off rows would look better in wool, but I have yet to find a tidy way to work the side edges.
I designed this for a knitting class during which I mainly want to introduce the technique. It is handy to know the theory to use when starting and finishing any piece of knitting even if the rest isn’t double knit.
I’ve ordered Double Knitting: Reversible Two-Color Designs by M’Lou Baber. Years ago, I knit a double knit coat then I met M’Lou and was drawn to her designs. Her work is the most stunning double knitting that I’ve ever seen. I am looking forward to seeing her book.
Teaching knitting classes is not only great fun for me, but it also introduces me to how other people think in reference to their knitting. That helps when writing out pattern instructions. I am now aware that some folks may interpret what I write differently than what I intended. There are times when I know I need to present the same thing several different ways.