This is pretty innovative, but one big issue come to mind.
You're going to have to make sure students don't use this to browse the internet and/or play games during class. Let's say the teacher is giving the students a lecture, and refers them to a page in the textbook for more information. They're not going to be able to check if ever student is gaming or browsing the web on their iPad.
Right now students can still play games using their other devices, but in that case, the teacher can take it away for the day. Here, the iPad contains all their textbooks. If they take away, the student can longer use their textbooks.
Obviously, not every student is going to to do this, but it brings in another opportunity for the student to not pay attention.
You're going to have to make sure students don't use this to browse the internet and/or play games during class. Let's say the teacher is giving the students a lecture, and refers them to a page in the textbook for more information. They're not going to be able to check if ever student is gaming or browsing the web on their iPad.
Right now students can still play games using their other devices, but in that case, the teacher can take it away for the day. Here, the iPad contains all their textbooks. If they take away, the student can longer use their textbooks.
Obviously, not every student is going to to do this, but it brings in another opportunity for the student to not pay attention.