I was at a 'technology literate' middle school when Lego Mindstorms came out, and the school bought a few of them for the school computer club so people could 'program' and 'debug' the RCX robots. It was good fun, but all it taught to kids was a very rudimentary concept of program flow.
If you want to make kids tech literate, you deconstruct something they use in their every day lives, when they're old enough to be capable of it. A good example would be a high school course focusing on high level full-stack design - here's twitter, here's how their servers look like in a very simple way, here's their API, let's do a 2 month project to make a frontend. Or let's make our own mini twitter just for our class, here's a sql server and we can write the backend together over a month or so. That sort of thing would both engage kids and give them useful experience.