"At its simplest, a flipped format can involve a teacher inviting students to view YouTube videos at home as a preview to the day's topic. At its most rigorous, a flipped curriculum involves teachers writing, producing, directing, editing, and posting their own original lessons -- complete with custom narrations and visualizations -- via third-party applications."
Classroom is a new product in Google Apps for Education that enables teachers to send assignments, make announcements, and conduct question & answer with students. Classroom was designed hand-in-hand with teachers to help them save time, keep their classes organized, and improve communication with students.
There are a number of open source (and completely free) programs out there that do much of what Photoshop can. In this collection, you will find 10 excellent examples of open source and free alternatives to Adobe Photoshop.