My advice is to learn something like HTML/CSS.
It is really easy to read and understand. Send him a "before and after"
Sheet 1: some b, i, title, font, etc tags marked up in HTML with data
Sheet 2: the "after" sheet of what it looks like rendered
Each week the remote student will be tasked with writing out a basic website. He / she sends in his work to the teacher that inputs the data (bonus points for OCR.)
The teacher sends back the rendering along with the next lesson plan.
From there you can go into CSS. Javascript would be a little harder but think how advanced you can get at HTML/CSS in a few years?
Being that I already had knowledge, I took time to hone in on more theoretical skills such as UX and read a ton of books related to user experience, business, etc.