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  2. Everyday Mathematics - Wikipedia

    en.wikipedia.org/wiki/Everyday_Mathematics

    Everyday Mathematics curriculum was developed by the University of Chicago School Math Project (or UCSMP ) [1] which was founded in 1983. Work on it started in the summer of 1985. The 1st edition was released in 1998 and the 2nd in 2002. A third edition was released in 2007 and a fourth in 2014-2015. [2] A new one was released in 2020, dropping ...

  3. Link (knot theory) - Wikipedia

    en.wikipedia.org/wiki/Link_(knot_theory)

    Frequently the word link is used to describe any submanifold of the sphere diffeomorphic to a disjoint union of a finite number of spheres, .. In full generality, the word link is essentially the same as the word knot – the context is that one has a submanifold M of a manifold N (considered to be trivially embedded) and a non-trivial embedding of M in N, non-trivial in the sense that the 2nd ...

  4. List of mathematical knots and links - Wikipedia

    en.wikipedia.org/wiki/List_of_mathematical_knots...

    3 1 knot/Trefoil knot - (2,3)-torus knot, the two loose ends of a common overhand knot joined together 4 1 knot/ Figure-eight knot (mathematics) - a prime knot with a crossing number four 5 1 knot/ Cinquefoil knot , (5,2)-torus knot, Solomon's seal knot, pentafoil knot - a prime knot with crossing number five which can be arranged as a {5/2 ...

  5. Big Ideas Learning - Wikipedia

    en.wikipedia.org/wiki/Big_Ideas_Learning

    The origins of Big Ideas Learning go back to 1980, when mathematics textbook author Ron Larson started a small company called Larson Texts. The company became incorporated in Pennsylvania in 1992 and became Larson Texts, Inc. [2]

  6. Third grade - Wikipedia

    en.wikipedia.org/wiki/Third_grade

    Kids learn reading, vocabulary, and writing strategies such as finding main idea, finding theme, citing textual evidence, compare and contrast, nouns, verbs, context clues, writing narratives, writing research reports, writing explanatory essays, and writing persuasive and argumentative pieces. Grade 3 students learn how to work on projects on ...

  7. Investigations in Numbers, Data, and Space - Wikipedia

    en.wikipedia.org/wiki/Investigations_in_Numbers...

    Investigations was developed between 1990 and 1998. It was just one of a number of reform mathematics curricula initially funded by a National Science Foundation grant. The goals of the project raised opposition to the curriculum from critics (both parents and mathematics teachers) who objected to the emphasis on conceptual learning instead of instruction in more recognized specific methods ...

  8. Pretzel link - Wikipedia

    en.wikipedia.org/wiki/Pretzel_link

    In the mathematical theory of knots, a pretzel link is a special kind of link.It consists of a finite number of tangles made of two intertwined circular helices.The tangles are connected cyclicly, [2] and the first component of the first tangle is connected to the second component of the second tangle, the first component of the second tangle is connected to the second component of the third ...

  9. Borromean rings - Wikipedia

    en.wikipedia.org/wiki/Borromean_rings

    In the tables of knots and links in Dale Rolfsen's 1976 book Knots and Links, extending earlier listings in the 1920s by Alexander and Briggs, the Borromean rings were given the Alexander–Briggs notation "6 3 2", meaning that this is the second of three 6-crossing 3-component links to be listed.

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