[dhicks6345789]

I'd agree that, in a teaching context, it's vital to have a consistant hardware / software experience - especially with beginner users, even different keyboard layouts are going to cause confusion. The Pi 400 is a great device, nice and compact - if you get the starter kit you just need to add a monitor / TV. That does somewhat assume someone has a bit of room, though - some space to plug in to what might be a shared TV. The really nice thing about Raspbian is that is does actually work on older laptops (with a couple of catches - no free Matlab), so, if you have an older laptop available and can spend a bit of time setting it up, you can give someone a very similar experience on a more all-in-one device.