Have them set up a minecraft server with spigot if you have the 4G version. And then they can do mods and even make the server available over the internet if yo

Have them set up a minecraft server with spigot if you have the 4G version. And then they can do mods and even make the server available over the internet if you can set up port forwarding and stuff. Yeah, not the most programming heavy task, but it's a good example to teach kids how these services actually work.