Distance Learning takes place through effective instructional systems between an instructor or student while the two are not physically in the same space. Class work and instructions are passed between the instructor and student. Some of the technology that instructors and students may use to correspond includes mail, email, internet, chat rooms, CD-ROM. Another popular form distance learning is tele-course. This usually consists of students watching a live broadcast (via television or computer) of their instructor giving lectures or explaining a subject.