Very useful.
Refers to:
Similar to the khanacademy.org website, the free Khan Academy app for iPad delivers more than 2,700 videos to the viewer, covering a range of topics including math, science and humanities.
Khan Academy also offers test prep lessons for SAT Math (188 videos), GMAT (96 videos), California Standards Test help, and others. Another section, called “Talks and Interviews,” features videos on Khan Academy television coverage and profiles of Salman Khan, the founder of the free online education platform.
Some videos cater to younger students, too, such as a tutorial on fractions, Vietnam War 101 and basic geometry, to name a few.
As an armchair astronomer, my favorite videos are in the Cosmology and Astronomy section, featuring 85 related videos that cover everything from an introduction to the Big Bang Theory and scaling the distance between planets to the birth of stars and a discussion on black holes. Many of these videos feature colorful, hand-drawn images on a smartboard, of sorts, but there is some multimedia, as well.
Each video can be streamed, with text that follows along with the narrator in real time; this allows you to skip ahead or go back by simply tapping on the desired subtitled section. Videos can also be downloaded to view offline, cued as a playlist or shared with friends or colleagues on Facebook or Twitter. The iTunes page for Khan Academy says interactive exercises are coming soon.
While optional, you can create an account and log in to get credit for watching videos and see your “achievements.”
Whether you’re a student, parent or anyone eager to get educated in any of these subjects — for free and accessible anywhere you’ve got your iPad — you’ll no doubt appreciate the breadth and depth of these informative video lessons.
http://content.usatoday.com/communities/technologylive/index#.T3xs6_Atgkk
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