Distance Education (DE), also known as Distance Learning (DL), is simply learning from a distance, usually from home, or from a conveniently located off-campus site. DL allows adults to earn college credits, even entire degrees, without ever leaving home. DL makes use of the Internet, software, modems, TV stations, 2-way television using fiber optics, microwave, digital phone lines, satellites, radio, ham radio, video cassette and audio tape, and normal mail to deliver instruction.
DL also refers to on-campus classes where the professors is not physically present, but communicating with students at several sites simultaneously via television, modem, or some other electronic means. DL is part of all degree types, from the A.A. to the Ph.D., and is an option in most majors and at hundreds of universities worldwide.
A broader definition of DL includes non-credit courses, workshops, seminars, and career credits like CEUs (continuing education credits). DL is for people who want to learn a new skill, or just pick up a few new ideas for the fun of learning. Additionally, DL is an exciting and growing part of public and private schools from elementary level through high school in many areas such as math, science, and languages. Shared courses offered via satellite, fiber optic cable and videocassette connect schools in the same town, or great distances apart.
Courses can be one-way or two-way. Finally, pre-university distance education, commonly known as home-schooling, is a type of DL. Typically, a home-schooled child is taught by his or her parents, however, sometimes, the child is tutored at home in part or completely via modem or TV course.
The definitions of terms like college credit and degree vary around the world. In the US, college credits are proportional to semester hours, and how quickly they are earned is usually determined by the number of hours spent in class, i.e., three hours spent in a course each week for one-semester equals 3 college credits.
Some courses will be worth 1 credit hour, and some, 6, 9, or even 12 credit hours. Three credit hours per course are most common. Even though DL degrees do not follow a traditional course of study in classrooms, they are awarded based on the DL equivalent of college credits earned.
There are four-degree levels in the USA, UK and in some other parts of the World.

• The Associate of Arts (AA) degree is a two-year degree, traditionally, requiring 60 semester hours of undergraduate study.
• The Bachelor of Arts (BA) or Science (BSc) degree is traditionally a 4-year degree of 120 semester hours of credit.
• The Master of Arts (MA) or Science (MSc) degree is the first level of graduate study beyond a bachelor degree. It requires between 30 and 54 semester hours of credit beyond the bachelors. It is more focused in a subject area than the bachelors and may require original research in the form of a thesis.
• The Doctor of Philosophy (Ph.D.) degree is a post-graduate degree encompassing 90 semester hours beyond the bachelors program. The doctorate goes by other names, too, such as Doctor of Education (Ed.D.) or Doctor of Business Administration (DBA). The Ph.D. and its equivalents are the highest academic degree that can be earned

Other structures found around the world encompass a 3-year bachelor degree program, with direct entry into a 3-year doctoral research program, sometimes by means of a Master of Philosophy research scheme that is later converted into a PhD. Where credits can be earned from prior learning or experience, the times can be proportionately shorter. Master's and doctoral degrees can also be earned by a combination of coursework, examinations and dissertation.
For most students, DL remains primarily books and paper proposition, as well as an independent study effort, but is made more convenient with the delivery of information via the Internet, the web, online services, telephone, TV, satellite courses, VHS tapes, cassette tapes, records, radio, ham radio, and CD-ROM. Many DL programs are correspondence courses where books, materials, and coursework are exchanged through the mail.
However, there are courses, which are electronic completely, such as interactive multimedia courses, and group learning in virtual classrooms. These options are growing in number and scope. Some DL programs have residency requirements ranging from a single weekend to short campus periods.
The people who need DL are usually adults, for whom the convenience and appeal of earning college credits on all degree levels with minimal domestic disturbance is a great attraction. Parents, caregivers, working adults, and all busy people find DL to be an excellent way to combine studies and living.
People who prefer to study solo can do so with DL, whilst those who enjoy group learning can find DL classes online. People who live in remote areas or where weather can be extreme, those who have disabilities that make commuting difficult and many others just for the fun of it turn to DL as the only practical way to earn college credits.

There is scheduling flexibility in DL. Many courses start when the student is ready, not just in September and January. Students can learn at any time of the day or night and there is no waiting for when a certain course will be offered at the traditional school. DL students can take any course anytime, and, sometimes, even help design the course they want to take.

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