You have a preview view of this article while we are checking your access. When we have confirmed access, the full article content will load.After initially banning artificial intelligence chatbots, schools are embracing the tools. Miami, the third-largest U.S. school district, shows how.Credit...Ysa Pérez for The New York TimesHow Miami Schools Are Leading 100,000 Students Into the A.I. FutureAfter initially banning artificial intelligence chatbots, schools are embracing the tools. Miami, the t...