It is a thing of the past when teaching and learning were restricted to classroom sessions prominent with white chalk, dusters and blackboards. Now is the era of which make learning fun through the use of digital equipment like the VCD or DVD player or laptops and computers, fitted to a projector.

Smart classes are conducted by a teacher using a viewing screen that is attached to the projector. Students will assimilate the audio-visual information that is projected on the screen and learn about the topic. This mode of learning and teaching presents a mixed bag of advantages and disadvantages.