Microsoft has extended its program for educational institutions that offer Office 365 ProPlus subscription to their students. Now, even the educators will gain access to Office 365 ProPlus on the cloud. Each user (or teacher in this case) can download Office for up to five PCs and Macs as well as Office apps on other mobile devices such as Windows tablets and iPads. They also gain access to apps and add-ins like Office Mix, Lync, OneNote, and more.
Source: Microsoft in Education