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  2. Mass point geometry - Wikipedia

    en.wikipedia.org/wiki/Mass_point_geometry

    Mass point geometry, colloquially known as mass points, is a problem-solving technique in geometry which applies the physical principle of the center of mass to geometry problems involving triangles and intersecting cevians. [1]

  3. Holt McDougal - Wikipedia

    en.wikipedia.org/wiki/Holt_McDougal

    Holt McDougal is an American publishing company, a division of Houghton Mifflin Harcourt, that specializes in textbooks for use in high schools.. The Holt name is derived from that of U.S. publisher Henry Holt (1840–1926), co-founder of the earliest ancestor business, but Holt McDougal is distinct from contemporary Henry Holt and Company, which claims the history from 1866.

  4. Houghton Mifflin Harcourt - Wikipedia

    en.wikipedia.org/wiki/Houghton_Mifflin_Harcourt

    Under (new from 1991) president Nader F. Darehshori Houghton Mifflin acquired McDougal Littell in 1994, for $138 million, an educational publisher of secondary school materials, [26] and the following year acquired D.C. Heath and Company, [27] a publisher of supplemental educational resources.

  5. Geometry - Wikipedia

    en.wikipedia.org/wiki/Geometry

    The Elements was known to all educated people in the West until the middle of the 20th century and its contents are still taught in geometry classes today. [18] Archimedes ( c. 287–212 BC ) of Syracuse, Italy used the method of exhaustion to calculate the area under the arc of a parabola with the summation of an infinite series , and gave ...

  6. Principles and Standards for School Mathematics - Wikipedia

    en.wikipedia.org/wiki/Principles_and_Standards...

    The Principles and Standards for School Mathematics was developed by the NCTM. The NCTM's stated intent was to improve mathematics education. The contents were based on surveys of existing curriculum materials, curricula and policies from many countries, educational research publications, and government agencies such as the U.S. National Science Foundation. [3]

  7. Hong Kong Mathematical High Achievers Selection Contest

    en.wikipedia.org/wiki/Hong_Kong_Mathematical...

    It is jointly organized by Po Leung Kuk and Hong Kong Association of Science and Mathematics Education since the academic year 1998-1999. Recently, there are more than 250 secondary schools participating.

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