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  • October 2016: Class size

    October 31, 2016

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    Class size is always a hot topic, especially among parents
    and teachers.

    According to the National
    Center for Education Statistics
    , in the 2011-2012 school year, average
    class size across all public schools in the United States was 21.6 students in
    elementary school, 25.5 students in middle school, and 24.2 students in high
    school. This month, Teacher Trendline looks at class size restrictions and what
    happens when class size limits are exceeded.

    Class size
    restrictions

    Among the 149 districts in the database, 102 explicitly
    mention some form of class size restriction in collective bargaining agreements
    or board policies. The majority of these set absolute or targeted maximum class
    sizes, although the language often excludes some grades. Among the districts
    that do set limits, a little over half (57 districts) have limits for all
    grades from kindergarten through grade 12.

    When districts limit class size, on average they set the
    limit of about 20 students in pre-kindergarten. 
    At the secondary level, the limit is much higher at an average of about
    31 students in a 12th grade class.
    [1]

    The table above doesn’t include districts that aren’t
    mandating or suggesting a cap to class sizes but try to control class sizes in
    other ways, such as defining the average class size or setting school- or
    district-wide student to teacher ratios. These policies give districts more
    flexibility in staffing decisions. In
    Mesa (AZ), for example, the goal
    for the average K-3 class size at each school is 26 students.

    Districts are much less apt to set limits for secondary
    grades than elementary grades. While 92 districts set limits for kindergarten,
    only 60 districts set them for 12
    th grade, generally expressing more
    flexibility about class sizes for older students. For example,
    Buffalo and Jefferson County (CO) limit
    secondary class size by specifying a limit on the number of students taught
    throughout the day (120 to 150 students in Buffalo, 150 students in Jefferson
    County).

    When districts do set class size limits in secondary grades,
    it’s not uncommon for these limits to vary depending on the subject being
    taught. Fourteen districts reference different class size limits for academic
    or core classes and non-academic classes or electives. For example, in
    secondary grades in
    Cincinnati, academic classes are
    capped at 30 students while elective classes are capped at 34 students.

    There are six districts that vary class size restrictions
    based on the demographics of the students in the school. In
    New York City, class sizes are
    smaller in middle school grades in Title I schools.
    St. Paul has lower class sizes in
    all grades for high-poverty schools.
    Minneapolis only specifies class
    size maximums for high-poverty schools. Several California districts, including
    Los Angeles, Sacramento, and Oakland, also set lower class size
    restrictions for high poverty schools.

    Four districts (Montgomery County (MD), Baltimore City, Philadelphia, and Greenville County (SC)) are
    particularly flexible, allowing class size to vary each year depending upon budget
    and student needs.

    Exceeding class size
    limits

    Even with the best of intentions, sometimes districts
    exceed class size restrictions
    . In fact, it is not unusual to see language
    in class size policies referencing class size “targets” or “goals”
    (as opposed to fixed caps), essentially statements that the district will make
    an effort to meet the goals outlined in the policy, but if it is necessary to
    exceed the target, a school has permission to do so.  While half of the districts are silent as to
    consequences when targets are exceeded, half (72 of 149) do spell out what the
    consequences must be.

    The most common consequence is that the school must add a
    paraprofessional or teacher’s aide to the class. Contracts also often stipulate
    that parents must be notified as well as holding a meeting between the teacher and
    the administration to discuss solutions.

    There are several districts, counted in the “Other” category
    above, that explicitly say that the class size limit must be kept at any cost.
    In
    Long Beach, a return to the cap is
    required within 20 days. In
    Santa Ana (CA), the district must
    correct a K-3 class size variance within three weeks. In
    Columbus (OH), the district must
    reduce the class size, unless the teacher agrees to exceed the limit. Other
    districts in this category have policies to reduce teachers’ non-teaching
    duties (
    Boston, Minneapolis) or give teachers
    additional preparation time (
    Santa Ana, Chicago, Minneapolis).

    In districts that offer compensation to teachers for
    exceeding class size limits, the amount of compensation is usually determined
    by a formula that involves a rate of pay per student over the limit for a given
    amount of time. For example, in
    Santa Ana intermediate and high
    school teachers make $10 per student over the limit per day. Other districts have
    greater variation. In
    Corona-Norco (CA), teachers in
    grades K-8 received $500 per semester while teachers in secondary grades
    receive either $600 or $1000 per semester depending on the number of students
    over the daily student limit. In
    Toledo, teachers receive $125 per
    student per instructional hour in elementary grades or per period in secondary
    grades.

    There are six districts with policies that allow teachers to
    address their class size concerns, even though their contracts do not actually
    specify the size of classes.
    Prince George’s County(MD) and Bismarck (ND) describe only in
    general terms that the district will take action if class sizes are deemed to
    be a problem, but in
    Portland (OR), Christina (DE), Red Clay (DE), and Alpine (UT), teachers are directed
    to appeal a class size problem to their supervisors.

    An international
    comparison

    The Organization for Economic Cooperation and Development
    gathers data on a variety of education-related topics, including
    average
    class size
    , for its member countries. The graph below shows how class sizes
    in the U.S. compare to those of 32 other countries. I
    n elementary
    grades, the U.S. has a slightly lower than average elementary class size across
    these countries. The international average elementary class size is 21.95 while
    the average elementary class size in the U.S. is 21.5. In middle school, the
    U.S. average class size is 27.6, roughly three students higher than the
    international average of 24.3. 

    Access all of our data on class size policies and more by
    visiting the
    Teacher
    Contract Database
    .

    The Teacher Contract Database includes information on over 145 school
    districts in the United States:  the 60
    largest districts in the country, the largest district in each state, the member
    districts of the Council of Great City Schools, and districts that won the
    Broad Prize for Urban Education. The database features answers to over 100
    policy questions and provides access to teacher contracts, salary schedules,
    and board policies in addition to relevant state laws governing
    teachers. 


    [1]
    In some districts, limits vary by subject or school demographics. In these
    cases, we used the limits set for core academic classes and/or schools that
    were not high needs or participating in special programs.