How do I monitor multiple screens on one computer? (Say in a classroom?) [closed]

I am a teacher in a small computer-based class. The kiddos are young and I cant stand behind each computer making sure they are not on Itunes or solitaire.

From my computer screen, is there a way to get a live feed of their screens in a small box (think picture in picture) so I can quickly see who is not on task and who is?

iTALC does just what you are looking for. As a bonus, it has presentation mode, and remote control ability. It is a front-end to (secure!) VNC servers running on each workstation. There are windows and linux builds available. Good luck!

Why aren't the computers setup so that the kids use an account with only the software they're supposed to use in class?

I don't understand why they would have iTunes installed at for their accounts. The Microsoft games can easily be removed with the Add/Remove control panel.

VNC on the computers and use VNCed to monitor the computers. Works very well and that project has a MSI package creator for VNC to deploy to Windows computers.

I work in a school as the IT person and we use VNC to remote on to anyone's pc to do stuff that we're too lazy to walk too (i'm honest) and the computing dept use NetOp school 6.0 to control each pupils computer, show them stuff and demonstrate to the class. Its really powerfull. If you just want to monitor the action of the pupil then vnc server and viewer is probably best. We've never encountered a legal issue to this and its written into our ICT policies anyway.