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  2. Three-part lesson - Wikipedia

    en.wikipedia.org/wiki/Three-part_lesson

    In this final phase, the teacher oversees the sharing of solutions by students, and may employ other teaching techniques such as "math congress", "gallery walk", or "bansho".

  3. Fourth grade - Wikipedia

    en.wikipedia.org/wiki/Fourth_grade

    In India, where children enter Class 4 at the ages 9 to 10 it is called Lower Primary, it is known as the fourth grade. 5-7 standard categories as Upper Primary (UP). Lower Primary gives the basic education necessary for a kid and when they get to the UP section, advanced knowledge will be provided via lessons or modules. [citation needed]

  4. Multiplicative group of integers modulo n - Wikipedia

    en.wikipedia.org/wiki/Multiplicative_group_of...

    The order of the group () is the product of the orders of the cyclic groups in the direct product. The exponent of the group, that is, the least common multiple of the orders in the cyclic groups, is given by the Carmichael function λ ( n ) {\displaystyle \lambda (n)} (sequence A002322 in the OEIS ).

  5. Ordered field - Wikipedia

    en.wikipedia.org/wiki/Ordered_field

    The smallest subfield is isomorphic to the rationals (as for any other field of characteristic 0), and the order on this rational subfield is the same as the order of the rationals themselves. If every element of an ordered field lies between two elements of its rational subfield, then the field is said to be Archimedean .

  6. Polynomial expansion - Wikipedia

    en.wikipedia.org/wiki/Polynomial_expansion

    In mathematics, an expansion of a product of sums expresses it as a sum of products by using the fact that multiplication distributes over addition. Expansion of a polynomial expression can be obtained by repeatedly replacing subexpressions that multiply two other subexpressions, at least one of which is an addition, by the equivalent sum of products, continuing until the expression becomes a ...

  7. Higher-order function - Wikipedia

    en.wikipedia.org/wiki/Higher-order_function

    In mathematics and computer science, a higher-order function (HOF) is a function that does at least one of the following: takes one or more functions as arguments (i.e. a procedural parameter, which is a parameter of a procedure that is itself a procedure), returns a function or value as its result. All other functions are first-order functions.

  8. Matrix multiplication - Wikipedia

    en.wikipedia.org/wiki/Matrix_multiplication

    Algorithms have been designed for choosing the best order of products; see Matrix chain multiplication. When the number n of matrices increases, it has been shown that the choice of the best order has a complexity of O ( n log ⁡ n ) . {\displaystyle O(n\log n).} [ 13 ] [ 14 ]

  9. Phase transition - Wikipedia

    en.wikipedia.org/wiki/Phase_transition

    An order parameter is a measure of the degree of order across the boundaries in a phase transition system; it normally ranges between zero in one phase (usually above the critical point) and nonzero in the other. [30] At the critical point, the order parameter susceptibility will usually diverge.