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  2. Exercise book - Wikipedia

    en.wikipedia.org/wiki/Exercise_book

    These notebooks are intended for usage in middle and high school for tasks like lesson notes, long-term projects, essays, laboratory experiments, etc. Other sizes and number of sheets are permitted. The preferable sizes are (in mm): 210 x 297 (A4), 203 x 288, 203 x 275, 170 x 203, 148 x 210 (A5), 144 x 203.

  3. Open textbook - Wikipedia

    en.wikipedia.org/wiki/Open_textbook

    An open textbook is a textbook licensed under an open license, and made available online to be freely used by students, teachers and members of the public.Many open textbooks are distributed in either print, e-book, or audio formats that may be downloaded or purchased at little or no cost.

  4. CK-12 Foundation - Wikipedia

    en.wikipedia.org/wiki/CK-12_Foundation

    CK-12 was established in 2007 by Neeru Khosla and Murugan Pal as a not-for-profit educational organization. [5] Teacher-generated content was initially made available under Creative Commons Attribution licenses so as to make it simpler, easier, and more affordable for children to access educational resources.

  5. Tarski's high school algebra problem - Wikipedia

    en.wikipedia.org/wiki/Tarski's_high_school...

    In mathematical logic, Tarski's high school algebra problem was a question posed by Alfred Tarski. It asks whether there are identities involving addition , multiplication , and exponentiation over the positive integers that cannot be proved using eleven axioms about these operations that are taught in high-school-level mathematics .

  6. Free High School Science Texts - Wikipedia

    en.wikipedia.org/wiki/Free_High_School_Science_Texts

    The Free High School Science Texts (FHSST) organization is a South African non-profit project, which creates open textbooks on scientific subjects. Textbooks are edited to follow the government's syllabus, and published under a Creative Commons license (CC BY [1]), allowing teachers and students to print them or share them digitally.

  7. Mathematics education in the United States - Wikipedia

    en.wikipedia.org/wiki/Mathematics_education_in...

    [13] [14] According to a 1997 report by the U.S. Department of Education, passing rigorous high-school mathematics courses predicts successful completion of university programs regardless of major or family income. [15] [16] Meanwhile, the number of eighth-graders enrolled in Algebra I has fallen between the early 2010s and early 2020s. [17]

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