Distance learning and blackboard distance learning means that students learn the course using some communication rather than direct communication with teachers. This type of learning began in the early 1800 years when adult ordered a course by post to learn handwriting (Cosgrove 2002). Distance learning technology has existed for a while. Iowa State University began lecturing on television in 1934 (Cosgrove 2002).
In the past few years, distance learning has increased. For distance learning, use the chat room bulletin board, online assignment, classroom teaching materials to adapt students to higher education and use online classrooms to meet the needs of busy living. Distance education is a general trend in higher education, but some critics like Barszcz believe distance education is not as effective as traditional university education.
In many cases, online learning is a wider area of distance education. The United States Distance Education Association defines distance education as "educational program". In this educational program, students can complete all or part of the educational program outside the program. "Students and teachers usually live in different places, there is no physical classroom, so the teaching process depends on the Internet and personal computer.
The educational system has changed dramatically for a long time. With the advent of distance education courses and executive courses, the improvement of learning and knowledge is no longer a distant dream. Distance learning changed the traditional way of studying everything. Participation in the distance learning program has many advantages, but you can access the online course after obtaining the teaching materials at home, you can take the exam and publish the result. In many educational institutions, teachers and teachers offer online courses / on-site courses like general, but they are connected to students who are away from their laptops. Materials such as books and sample documents arrive at the mailing address of the students, which helps to understand the concept of difficulties in online courses. In this way, students can study two courses at the same time and obtain two certificates.