The resolution is painfully low for something that is going to be mostly showing text to students. Other than that it looks good.
Not a real upgrade but still...this is not bad at all....infact it has only 2 big changes here over the previous mile up.
1- It has quad core processor while all the previous tab series tablets have dual core.
2- Samsung has increase its Ram, it has 1.5 gig of Ram over the only 1 gig Ram of tab 3. 10 incher.
But ...if samsung put there 5mp or 8mp rear + 2 mp front camera, at least 2 gb Ram & snapdragon or intel atom chipset, & some sensors like compass, gyro, etc...
So I think it will be the best tablet in this range.