I throw everything out at the end of each school year.
Actually, there are maybe half a dozen lesson that I’ll keep from year to year- but I only keep the idea of the lesson, not the stuff attached to it.
I’m saying this for a simple reason: I’ve been bombarded for years with people trying to move stuff they’ve made from one format or platform to another, newer one. I usually try to help, and the efforts are usually messy and only partially successful. They always ask how I’m managing the transition, and I always say that I don’t have the problem. I think they must assume that I have some secret method for reformatting my teaching resources, but the truth is more simple. I simply make new stuff, all the time.
I think it’s because I bore so easily. I can’t imagine re-using something I’ve already used. Or maybe it’s because I believe that each year’s students are fundamentally different than the last, and the things I’m using to teach should reflect that. Or it’s that I believe that my job, as an educator, is partially to create content, and if I’m using content from years ago I’m shirking my duties. I think that if I taught the same thing the same way twice, that would be me saying that the lesson is perfect and cannot be improved. Which is never the case. Otherwise, why wouldn’t I change and improve it?
Whatever it is, it keeps life good for me. I’m always solving new problems, always re-imagining how things should be presented, always looking for a better way. And I never have to deal with moving my stuff from one platform to another.