Virtual tools are providing an opportunity to rethink this methodology. If the test identifies gaps in students' understanding of a basic concept, the class still moves on to a more advanced concept. Exams often offer the first opportunity for the professor to get real information on how well the students digested the knowledge. Despite there being anywhere from 20 to 300 human beings in the room, there is little to no human interaction. Today students in most classrooms sit, listen and take notes while a professor lectures. Instead we have an opportunity to blend the virtual with the physical and reimagine education entirely. We should not aim to replace the physical classroom.

In education, however, the virtual will create a very different type of disruption. They assume that the virtual will replace the physical with something cheaper, faster and more efficient. Whenever people imagine virtual anything, they immediately pit it against its physical counterpart-Amazon versus physical book stores, Wikipedia versus physical encyclopedias.

Salman khan online learning