From the article:
First, before everything else, is this: there is no reason to fear. You’re going to mess up, and that’s okay. You’re going to fall short of what you expect you can do. That is also okay. You’re going to struggle to reach every kid in your class. That is no different than it was before, and it is okay. Breathe. Teaching is hard enough without all the stress of the technology. Don’t allow the unfamiliar systems to distract you from the essential connection with the kids. They’ll forgive you if they love you, and they’ll love you if you love them. Keep that first. Remember, always, that trust begets learning. If you get that part right, the rest of it will be fine. Not perfect, but fine.