SAN ANTONIO (AP) — On a scorching hot Saturday in San Antonio, dozens of teachers traded a day off for a glimpse of the future. The topic of the day’s workshop: enhancing instruction with artificial intelligence.After marveling as AI graded classwork instantly and turned lesson plans into podcasts or online storybooks, one high school English teacher raised a concern that was on the minds of many: “Are we going to be replaced with AI?”That remains to be seen. But for the nation’s 4 million teach...