Stem related products need to have great content but at the same time do not require a lot of bandwidth as most schools infrastructure won’t handle it. I can’t think of any school the can stream 4K video to 5 or 10 devices, it’s simply not practical. These products also need to be fairly easy to use so the teacher doesn’t have to be too technical and still understand how it all works. It also helps immensely to have a teacher(s) interested in the solution to champion it and help others learn as they all do have a learning curve.