Eric, can you spend a little bit of time with
Thompson walking him through setting up wiki sites in glitch? Of particular interest would be any concerns with admin for 150 eight-grade students for a year. I'd be happy to join a call if you can get together today? matrix 
Here we demonstrate using Glitch.com to host wiki for authors.
We'll post some pictures and see how long they last.
The fastest way to get started with your own wiki is to remix this one at glitch. remix
Tip: use https for password completion via chrome.