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2. Blackboard - Wikipedia

   en.wikipedia.org/wiki/Blackboard

   Uses. Reusable writing surface on which text or drawings are made. A blackboard or a chalkboard is a reusable writing surface on which text or drawings are made with sticks of calcium sulphate or calcium carbonate, known, when used for this purpose, as chalk. Blackboards were originally made of smooth, thin sheets of black or dark grey slate stone.

3. Blackboard Jungle - Wikipedia

   en.wikipedia.org/wiki/Blackboard_Jungle

   Blackboard Jungle is a 1955 American social drama film about an English teacher in an interracial inner-city school, based on the 1954 novel The Blackboard Jungle by Evan Hunter and adapted for the screen and directed by Richard Brooks. It is remembered for its innovative use of rock and roll in its soundtrack, for casting grown adults as high ...

4. Blackboard bold - Wikipedia

   en.wikipedia.org/wiki/Blackboard_bold

   Blackboard bold is a style of writing bold symbols on a blackboard by doubling certain strokes, commonly used in mathematical lectures, and the derived style of typeface used in printed mathematical texts. The style is most commonly used to represent the number sets ( natural numbers ), ( integers ), ( rational numbers ), ( real numbers ), and ...

5. Learning management system - Wikipedia

   en.wikipedia.org/wiki/Learning_management_system

   A learning management system ( LMS) or virtual learning environment ( VLE) is a software application for the administration, documentation, tracking, reporting, automation, and delivery of educational courses, training programs, materials or learning and development programs. [1] The learning management system concept emerged directly from e ...

6. Instructure - Wikipedia

   en.wikipedia.org/wiki/Instructure

   Instructure, Inc. Instructure, Inc. is an educational technology company based in Salt Lake City, Utah, United States. It is the developer and publisher of Canvas, a web-based learning management system (LMS), and Mastery Connect, an assessment management system. Prior to its IPO in 2021, the company was owned by private-equity firm Thoma Bravo .

7. Chalkboard scraping - Wikipedia

   en.wikipedia.org/wiki/Chalkboard_scraping

   Chalkboard scraping. Scraping a chalkboard (also known as a blackboard) with one's fingernails produces a sound and feeling which most people find extremely irritating. The basis of the innate reaction to the sound has been studied in the field of psychoacoustics (the branch of psychology concerned with the perception of sound and its ...