It's not exactly a teaching resource, but one tool I think high schoolers will be interested in is the browser's dev tools. Showing how they can modify website

It's not exactly a teaching resource, but one tool I think high schoolers will be interested in is the browser's dev tools. Showing how they can modify websites they visit - even if just to replace a phrase on the homepage of their school's website with something else, like legal graffiti - can interest them in one kind of code - web code. It's not the only or even most important kind of programming, but it's highly accessible/relatable to high schoolers.