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  2. Class-size reduction - Wikipedia

    en.wikipedia.org/wiki/Class-size_reduction

    The first phase, termed Project STAR (Student-Teacher Achievement Ratio), [8] randomly assigned teachers and students to three groups, “small” (13 to 17), “regular” (22 to 25) classes with a paid aide, and “regular” (22 to 25) classes with no aide. In total some 6,500 students in about 330 classrooms at approximately 80 schools ...

  3. Class size - Wikipedia

    en.wikipedia.org/wiki/Class_size

    In general, average class size will be larger than student-teacher ratio anytime a school assigns more than one teacher to some classrooms. [2] In poor and urban districts, where schools enroll higher numbers of students needing specialized instruction, student-teacher ratios will therefore be especially imprecise measures of class size. [3]

  4. Crowds (adolescence) - Wikipedia

    en.wikipedia.org/wiki/Crowds_(adolescence)

    The basic, recurring crowd divisions (jocks, geeks, partiers) have been most often studied in predominantly white high schools, but they also exist for minority students. [14] In multiracial schools, students seem to divide along ethnic lines first, then into these archetypical crowds within their own ethnicity.

  5. Three Cups of Tea - Wikipedia

    en.wikipedia.org/wiki/Three_Cups_of_Tea

    2007, Three Cups of Tea: One Man's Mission to Promote Peace…One School at a Time. Penguin Books Ltd. ISBN 978-0-14-303825-2. Paperback. 2009, Three Cups of Tea: One Man's Journey to Change The World…One Child at a Time (Young Adult Book). Mortenson, Greg; Relin, David Oliver; signature by Amira Mortenson, foreword by Jane Goddall.

  6. Expanded learning time - Wikipedia

    en.wikipedia.org/wiki/Expanded_learning_time

    [27] In September 2012, Chicago Public Schools (CPS), the third largest school district in the United States, with over 400,000 students and 675 schools, expanded learning time for all of its schools through its Full School Day Initiative. As part of the agreement with the Chicago Teachers Union, the district added 477 new teaching positions ...

  7. Stride, Inc. - Wikipedia

    en.wikipedia.org/wiki/Stride,_Inc.

    Stride, Inc. (formerly K12 Inc.) is a for-profit education company that provides online and blended education programs. Stride, Inc. is an education management organization (EMO) that provides online education designed as an alternative to traditional "brick and mortar" education for public school students from kindergarten to 12th grade (hence its former name), as well as career learning ...

  8. Kirkman's schoolgirl problem - Wikipedia

    en.wikipedia.org/wiki/Kirkman's_schoolgirl_problem

    In addition to S(2,3,9), Kramer and Mesner examined other systems that could be derived from S(5,6,12) and found that there could be up to 2 disjoint S(5,6,12) systems, up to 2 disjoint S(4,5,11) systems, and up to 5 disjoint S(3,4,10) systems. All such sets of 2 or 5 are respectively isomorphic to each other.

  9. Adolescent clique - Wikipedia

    en.wikipedia.org/wiki/Adolescent_clique

    Crowd ranking can sometimes change but is generally quite stable across time and schools. [3]: p.162 Part of a clique's popularity status is based on the crowd with which its members associate, thus similarly popular cliques within the same crowd are more likely to move within the hierarchy than are similar crowds within the larger peer context.