The problem with projectors is that then kids can’t see the globe at home, unless you ask them to see it online but a 8 years old kid hardly will be able do it (and i assure you, depending on parents being able to do it is a BAD idea, there is lots of parents who can’t or that will simply show the wrong thing) and it also means that you have to depend on internet access, what if internet access is down or electricity got fucked? (those projectors or smart whiteboards are so shitty that they would not be able to have an offline version)