Education has dramatically shifted in recent years. Schools aligned physical spaces to flexible spaces that integrate technology to support the 21" century learning opportunities. The modern learning environment incorporates the three elements (1) connected devices such as notebooks, tablets, smart phones. (2) audio visual tools including projectors and touch screen displays and (3) purposeful furniture such as standing desks, collaborative work stations and connected seating that allow students to learn in different ways at different times.
The on-line learning environment requires a constant access to connectivity which allows learning to take place anytime, anyplace and anywhere, On-line or virtual learning can be delivered synchronously or asynchronously, so the teacher's role is a moderator between the technology and the students.
Unlike face-to-face, on-line or virtual learning does not happen in one contained physical space but learners are in different imaginary spaces made possible by technology such as computer network. Virtual classrooms refer to digital learning environment that allows teachers and students to connect on line in real time.