Under "Manage>Privileges", you can select wether you want to edit the perms of a category, or the perms of "global".
You have to go to every category and edit the "guests" so all the boxes are unchecked.
Doesn't Technology Also Have Negative Impacts?
It is certain that technologies such as the RFID student tracker ( Edsys )will be helpful. But, what about the negative impacts that comes along with it? How can we be sure that when it comes to students, such technologies won't distract the kids or make them simply lazy?