Research in Canada, where more than 6,000 students use iPads every day for learning, highlighted both the pros and cons of using iPads in the classroom. The study noted that access to information and student motivation were among the pros, and distraction and writing skills being among the cons (apparently, students lacked the ability to type longer papers on the iPad).
https://theheartysoul.com/school-banned-ipads-going-back-to-regular-textbooks/