The Licensing FAQ

[karlieb]

Students (and therefore parents/guardians) will only be covered to access your SharePoint site remotely if you have bought Student User CALs for every student.

You will also need a Windows Server CAL for every student too.

School Agreement Student Core CAL = under £1

[SeanVin]

With regard to student CALs. I was told some time ago that they were allocated to a single student and were not transferable. i.e we would need to by a CAL for each new year 7 students every year. Can anybody clarify this. Many thanks.

[SteveJ]

With regard to student CALs. I was told some time ago that they were allocated to a single student and were not transferable. i.e we would need to by a CAL for each new year 7 students every year. Can anybody clarify this. Many thanks.

Bit late, but you can transfer CAL's between users/devices once every 90 days. So you can use the same CAL's each year (as long as you don't go over the total number you have).