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2. Seventh grade - Wikipedia

   en.wikipedia.org/wiki/Seventh_grade

   Seventh grade (also 7th Grade or Grade 7) is the seventh year of formal or compulsory education. The seventh grade is typically the first or second year of middle school. In the United States, kids in seventh grade are usually around 12–13 years old. Different terms and numbers are used in other parts of the world.

3. History of mathematics - Wikipedia

   en.wikipedia.org/wiki/History_of_mathematics

   Plato (428/427 BC – 348/347 BC) is important in the history of mathematics for inspiring and guiding others. [50] His Platonic Academy , in Athens , became the mathematical center of the world in the 4th century BC, and it was from this school that the leading mathematicians of the day, such as Eudoxus of Cnidus (c. 390 - c. 340 BC), came. [ 51 ]

4. Math wars - Wikipedia

   en.wikipedia.org/wiki/Math_wars

   In the United States, math wars are debates over modern mathematics education, textbooks and curricula that were triggered by the publication in 1989 of the Curriculum and Evaluation Standards for School Mathematics by the National Council of Teachers of Mathematics (NCTM) and subsequent development and widespread adoption of a new generation ...

5. Evolution of languages - Wikipedia

   en.wikipedia.org/wiki/Evolution_of_languages

   The highly diverse Nilo-Saharan languages, first proposed as a family by Joseph Greenberg in 1963 might have originated in the Upper Paleolithic. [1] Given the presence of a tripartite number system in modern Nilo-Saharan languages, linguist N.A. Blench inferred a noun classifier in the proto-language, distributed based on water courses in the Sahara during the "wet period" of the Neolithic ...

6. History of writing - Wikipedia

   en.wikipedia.org/wiki/History_of_writing

   This article cites its sources but its page reference ranges are too broad or incorrect. Please help in adding a more precise page range. (July 2024) (Learn how and when to remove this message) Survey of eight prominent scripts (left to right, top to bottom): Sumerian cuneiform, Egyptian hieroglyphs, Chinese characters, Maya script, Devanagari, Latin alphabet, Arabic alphabet, Braille Part of ...

7. Historical linguistics - Wikipedia

   en.wikipedia.org/wiki/Historical_linguistics

   Etymology studies the history of words: when they entered a language, from what source, and how their form and meaning have changed over time. Words may enter a language in several ways, including being borrowed as loanwords from another language, being derived by combining pre-existing elements in the language, by a hybrid known as phono ...

8. The Power of Babel - Wikipedia

   en.wikipedia.org/wiki/The_Power_of_Babel

   The Power of Babel: A Natural History of Language is a 2002 non-fiction book by American linguist John McWhorter. The book provides an overview of the then-recent research in the field of linguistics, focusing primarily on how languages have evolved and will continue to evolve over time. The author celebrates the diversity amongst the Earth's ...

9. Ancient Egyptian mathematics - Wikipedia

   en.wikipedia.org/wiki/Ancient_Egyptian_mathematics

   An interesting feature of ancient Egyptian mathematics is the use of unit fractions. [7] The Egyptians used some special notation for fractions such as ⁠ 1 / 2 ⁠, ⁠ 1 / 3 ⁠ and ⁠ 2 / 3 ⁠ and in some texts for ⁠ 3 / 4 ⁠, but other fractions were all written as unit fractions of the form ⁠ 1 / n ⁠ or sums of such unit ...