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  2. English alphabet - Wikipedia

    en.wikipedia.org/wiki/English_alphabet

    Modern English is written with a Latin-script alphabet consisting of 26 letters, with each having both uppercase and lowercase forms. The word alphabet is a compound of alpha and beta, the names of the first two letters in the Greek alphabet. Old English was first written down using the Latin alphabet during the 7th century.

  3. Letter frequency - Wikipedia

    en.wikipedia.org/wiki/Letter_frequency

    Letter frequency is the number of times letters of the alphabet appear on average in written language. Letter frequency analysis dates back to the Arab mathematician Al-Kindi ( c. 801 –873 AD), who formally developed the method to break ciphers. Letter frequency analysis gained importance in Europe with the development of movable type in 1450 ...

  4. List of colors: A–F - Wikipedia

    en.wikipedia.org/wiki/List_of_colors:_A–F

    List of colors: A–F. Colors are an important part of visual arts, fashion, interior design, and many other fields and disciplines. The following is a list of colors. A number of the color swatches below are taken from domain-specific naming schemes such as X11 or HTML4. RGB values are given for each swatch because such standards are defined ...

  5. Palmer Method - Wikipedia

    en.wikipedia.org/wiki/Palmer_Method

    Alphabet and numerals from The Palmer Method of Business Writing The method developed around 1888 and was introduced in the book Palmer's Guide to Business Writing (1894). [3] Palmer's method involved "muscle motion" in which the more proximal muscles of the arm were used for movement, rather than allowing the fingers to move in writing.

  6. Alphabet Inc. - Wikipedia

    en.wikipedia.org/wiki/Alphabet_Inc.

    Footnotes / references. [1] Alphabet Inc. is an American multinational technology conglomerate holding company headquartered in Mountain View, California. Alphabet is the world's second-largest technology company by revenue and one of the world's most valuable companies.

  7. Full-text search - Wikipedia

    en.wikipedia.org/wiki/Full-text_search

    The precision for the example is a very low 1/4, or 25%, since only 1 of the 4 results returned was relevant. Due to the ambiguities of natural language, full-text-search systems typically includes options like filtering to increase precision and stemming to increase recall.

  8. American Sign Language - Wikipedia

    en.wikipedia.org/wiki/American_Sign_Language

    The American manual alphabet and numbers. American Sign Language possesses a set of 26 signs known as the American manual alphabet, which can be used to spell out words from the English language. It is rather a representation of the English alphabet, and not a unique alphabet of ASL, although commonly labeled as the "ASL alphabet".

  9. Teacher Turnover: Why It Matters and What We Can Do About It

    files.eric.ed.gov/fulltext/ED606807.pdf

    Teacher turnover is an important source of these shortages. About 8% of teachers leave the profession each year, two-thirds of them for reasons other than retirement. Another 8% shift to different schools each year. In addition to aggravating teacher shortages, high turnover rates lower student achievement and are costly for schools.

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