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  2. 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 ...

  3. Samuel Read Hall - Wikipedia

    en.wikipedia.org/wiki/Samuel_Read_Hall

    Lack of simple display media such as a globe of the world. (He is credited with inventing the blackboard, and the blackboard eraser) Political factions within the school district, at war with each other at the expense of educational progress. Wealthy citizens sending their children to private schools.

  4. Blackboard (disambiguation) - Wikipedia

    en.wikipedia.org/wiki/Blackboard_(disambiguation)

    A blackboard is a reusable writing surface. Look up blackboard in Wiktionary, the free dictionary. Blackboard may also refer to: Black board (Soviet policy), sign used in the Soviet era publicly to chastise farms or factories for such things as failing to meet targets or opposing collectivisation. Blackboard bold, a style of typeface often used ...

  5. 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 ...

  6. Blackboard system - Wikipedia

    en.wikipedia.org/wiki/Blackboard_system

    A blackboard system is the central space in a multi-agent system. It's used for describing the world as a communication platform for agents. To realize a blackboard in a computer program, a machine readable notation is needed in which facts can be stored. One attempt in doing so is a SQL database, another option is the Learnable Task Modeling ...

  7. Thomas Jefferson - Wikipedia

    en.wikipedia.org/wiki/Thomas_Jefferson

    Views on slavery. Views on religion. Thomas Jefferson (April 13, 1743 [b] – July 4, 1826) was an American statesman, diplomat, lawyer, architect, philosopher, and Founding Father who served as the third president of the United States from 1801 to 1809. [6] He was the primary author of the Declaration of Independence.

  8. List of Microsoft Windows versions - Wikipedia

    en.wikipedia.org/wiki/List_of_Microsoft_Windows...

    A "personal computer" version of Windows is considered to be a version that end-users or OEMs can install on personal computers, including desktop computers, laptops, and workstations. The first five versions of WindowsWindows 1.0, Windows 2.0, Windows 2.1, Windows 3.0, and Windows 3.1 –were all based on MS-DOS, and were aimed at both ...

  9. Murder on the Blackboard - Wikipedia

    en.wikipedia.org/wiki/Murder_on_the_Blackboard

    Murder on the Blackboard. Murder on the Blackboard is a 1934 American pre-Code mystery / comedy film starring Edna May Oliver as schoolteacher Hildegarde Withers and James Gleason as Police Inspector Oscar Piper. Together, they investigate a murder at Withers' school. It was based on the novel of the same name by Stuart Palmer.