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Distance education: (or distance learning) A field of education that focuses on the pedagogy/andragogy, technology, and instructional systems design that is effectively incorporated in delivering education to students who are not physically "on site" to receive their education. Instead, teachers and students may communicate asynchronously (at ...
A measure of a star 's absolute brightness. It is defined as the apparent magnitude the star would show if it were located at a distance of 10 parsecs, or 32.6 light-years. accretion disk A roughly circular mass of diffuse material in orbit around a central object, such as a star or black hole. The material is acquired from a source external to ...
Brightness is an attribute of visual perception in which a source appears to be radiating or reflecting light. [1] In other words, brightness is the perception elicited by the luminance of a visual target.
Distance education, also known as distance learning, is the education of students who may not always be physically present at school, [1] [2] or where the learner and the teacher are separated in both time and distance. [3] Traditionally, this usually involved correspondence courses wherein the student corresponded with the school via mail.
The apparent magnitude is the observed visible brightness from Earth which depends on the distance of the object. The absolute magnitude is the apparent magnitude at a distance of 10 pc (3.1 × 10 17 m), therefore the bolometric absolute magnitude is a logarithmic measure of the bolometric luminosity.
Words that carry meaning; usually nouns, verbs and sometimes adjectives and adverbs. Context clues Clues used when guessing word meanings; clues that provide students with meaning or comprehension based on the environment in which a word is found. Contrastive analysis Comparing two languages to predict where learning will be facilitated and ...
mLearning or M-learning is where education is provided via a mobile phone device. The advantages are that learners can learn while on-the-go. However, the material that can be presented is limited and this format is considered best for short targeted learning. [11] Through the use of mobile technologies, learning while travelling is possible.
Asynchronous learning is a general term used to describe forms of education, instruction, and learning that do not occur in the same place or at the same time. It uses resources that facilitate information sharing outside the constraints of time and place among a network of people. [ 1 ]