See this Microsoft post for more details and this post for more on the role of Microsoft Teams in education
"The company is also making full versions of its Office applications, rather than more limited web versions, available to schools for free. It has modified a version of its Microsoft Teams group-chat tool so teachers can collaborate with students. It is also waiving the cost of an educational version of Minecraft, a popular video game it owns, for the first year schools use it.Microsoft Looks to Regain Lost Ground in the Classroom - The New York Times
While much of Microsoft’s focus is on software that makes using inexpensive devices — often in the $200 to $300 range — more palatable, the company will also release a $999 device called the Surface Laptop, a twist on its Surface tablets. The device will run Windows 10 S."