If she really is motivated to a degree to learn code. I would start first with theory, and explain it to her as if she was learning a new language. With that s

If she really is motivated to a degree to learn code. I would start first with theory, and explain it to her as if she was learning a new language. With that said, IMO would start her off with logic and OOP. That's if she really wants to code. If it's just a simple understanding of how the web works, the posters comments about HTML would suffice as a starting point.