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In mathematics, a ranked poset is a partially ordered set in which one of the following (non-equivalent) conditions hold: it is a graded poset, or; a poset with the property that for every element x, all maximal chains among those with x as greatest element have the same finite length, or; a poset in which all maximal chains have the same ...
The rank is consistent with the covering relation of the ordering, meaning that for all x and y, if y covers x then ρ(y) = ρ(x) + 1. The value of the rank function for an element of the poset is called its rank. Sometimes a graded poset is called a ranked poset but that phrase has other meanings; see Ranked poset.
In this poset, 60 is an upper bound (though not a least upper bound) of the subset {,,,}, which does not have any lower bound (since 1 is not in the poset); on the other hand 2 is a lower bound of the subset of powers of 2, which does not have any upper bound. If the number 0 is included, this will be the greatest element, since this is a ...
The study sought to determine the best and worst states for public school education by comparing them based on quality and safety. Oklahoma's education system ranked second-worst in the country ...
The educational system [1] generally refers to the structure of all institutions and the opportunities for obtaining education within a country. It includes all pre-school institutions, starting from family education, and/or early childhood education, through kindergarten, primary, secondary, and tertiary schools, then lyceums, colleges, and faculties also known as Higher education (University ...
Ranked choice voting is a system that works. It has been used in American cities since 1915 and in nations such as Australia for over a century. If you know the frustration and disgust of voting ...
Grading in education is the application of standardized measurements to evaluate different levels of student achievement in a course. Grades can be expressed as letters (usually A to F), as a range (for example, 1 to 6), percentages, or as numbers out of a possible total (often out of 100). The exact system that is used varies worldwide.
Holistic grading or holistic scoring, in standards-based education, is an approach to scoring essays using a simple grading structure that bases a grade on a paper's overall quality. [1] This type of grading, which is also described as nonreductionist grading, [ 2 ] contrasts with analytic grading, [ 3 ] which takes more factors into account ...