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  2. Caleb Gattegno - Wikipedia

    en.wikipedia.org/wiki/Caleb_Gattegno

    The charts are used to provoke the phonological awareness in students of the sounds they are making and the order in which they are making them thus engendering all the awarenesses of how the graphemes relate to the phonemes and of how the spatial order of writing reflects the chronological order of speech. Other charts, called Fidels, list the ...

  3. List of mathematical constants - Wikipedia

    en.wikipedia.org/wiki/List_of_mathematical_constants

    A mathematical constant is a key number whose value is fixed by an unambiguous definition, often referred to by a symbol (e.g., an alphabet letter), or by mathematicians' names to facilitate using it across multiple mathematical problems. [1]

  4. Mathematical diagram - Wikipedia

    en.wikipedia.org/wiki/Mathematical_diagram

    In mathematics, and especially in category theory, a commutative diagram is a diagram of objects, also known as vertices, and morphisms, also known as arrows or edges, such that when selecting two objects any directed path through the diagram leads to the same result by composition.

  5. Grapheme - Wikipedia

    en.wikipedia.org/wiki/Grapheme

    In linguistics, a grapheme is the smallest functional unit of a writing system. [1] The word grapheme is derived from Ancient Greek gráphō ('write'), and the suffix -eme by analogy with phoneme and other emic units. The study of graphemes is called graphemics. The concept of graphemes is abstract and similar to the notion in computing of a ...

  6. Category:Graphemes - Wikipedia

    en.wikipedia.org/wiki/Category:Graphemes

    Download as PDF; Printable version; ... Brahmic graphemes (2 C, 1 P) C. Chinese characters (9 C, ... This page was last edited on 1 September 2023, ...

  7. Cyrillic numerals - Wikipedia

    en.wikipedia.org/wiki/Cyrillic_numerals

    The system is a quasi-decimal alphabetic numeral system, equivalent to the Ionian numeral system but written with the corresponding graphemes of the Cyrillic script.The order is based on the original Greek alphabet rather than the standard Cyrillic alphabetical order.

  8. Table of mathematical symbols by introduction date - Wikipedia

    en.wikipedia.org/wiki/Table_of_mathematical...

    The following table lists many specialized symbols commonly used in modern mathematics, ordered by their introduction date. The table can also be ordered alphabetically by clicking on the relevant header title.

  9. Mathematical table - Wikipedia

    en.wikipedia.org/wiki/Mathematical_table

    Mathematical tables are lists of numbers showing the results of a calculation with varying arguments.Trigonometric tables were used in ancient Greece and India for applications to astronomy and celestial navigation, and continued to be widely used until electronic calculators became cheap and plentiful in the 1970s, in order to simplify and drastically speed up computation.