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2. List of learning management systems - Wikipedia

   en.wikipedia.org/wiki/List_of_learning...

   Edmodo (closed in 2022) Elluminate (acquired by Blackboard in 2010) Learn.com (acquired by Taleo in 2010) PeopleSoft (acquired by Oracle in 2005) Plateau Systems (acquired by Successfactors in 2011) Softscape (acquired by SumTotal in 2010) SuccessFactors (acquired by SAP in 2012) SumTotal (acquired by Skillsoft in 2014)

3. History of virtual learning environments in the 1990s - Wikipedia

   en.wikipedia.org/wiki/History_of_virtual...

   The VIRTUS project at University of Cologne, Germany, has started the development of the web-based ILIAS learning management system in 1997. A first version with an integrated web-based authoring environment has been going online at 2 November 1998. In 2000 ILIAS became open source software under the GPL.

4. Saccular acoustic sensitivity - Wikipedia

   en.wikipedia.org/wiki/Saccular_Acoustic_Sensitivity

   Saccular acoustic sensitivity is a measurement of the ear 's affectability to sound. The saccule 's normal function is to keep the body balanced, but it is believed to have some hearing function for special frequencies and tones. Saccular acoustic sensitivity is considered to be simply an extension of the sense of hearing through the use of the ...

5. Chalk - Wikipedia

   en.wikipedia.org/wiki/Chalk

   Blackboard chalk manufacturers now may use mineral chalk, other mineral sources of calcium carbonate, or the mineral gypsum (calcium sulfate). While gypsum-based blackboard chalk is the lowest cost to produce, and thus widely used in the developing world , use of carbonate-based chalk produces larger particles and thus less dust, and it is ...

6. Overhead projector - Wikipedia

   en.wikipedia.org/wiki/Overhead_projector

   Overhead projector. An overhead projector (often abbreviated to OHP ), like a film or slide projector, uses light to project an enlarged image on a screen, allowing the view of a small document or picture to be shared with a large audience. In the overhead projector, the source of the image is a page-sized sheet of transparent plastic film ...

7. Schoology - Wikipedia

   en.wikipedia.org/wiki/Schoology

   Schoology was designed by Jeremy Friedman, Ryan Hwang, and Tim Trinidad in 2007 while studying at Washington University in St. Louis. [1] Originally designed for sharing notes, features were gradually added and modified. Schoology secured its first round of equity financing, totaling $1,250,000, with an investment of unknown origin in 2009 and ...