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Primary schools | Middle schools | High schools | Combined grade schools | ||||||||||||||
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Selected school characteristic | Average class size for teachers in self-contained classes | Average class size for teachers in departmentalized instruction | Average class size for teachers in self-contained classes | Average class size for teachers in departmentalized instruction | Average class size for teachers in self-contained classes | Average class size for teachers in departmentalized instruction | Average class size for teachers in self-contained classes | Average class size for teachers in departmentalized instruction | |||||||||
All public schools | 21.2 | 26.5 | 14.3 | 26.8 | 15.0 | 26.0 | 15.7 | 21.8 | |||||||||
School classification | |||||||||||||||||
Traditional public | 21.2 | 26.7 | 14.2 | 26.8 | 14.7 | 26.0 | 14.1 | 19.4 | |||||||||
Charter school | 21.9 | 24.6 | 17.0 | ! | 26.2 | 21.7 | 25.1 | 21.7 | 28.3 | ||||||||
Community type | |||||||||||||||||
City1 | 21.7 | 27.6 | 15.5 | 27.8 | 15.9 | 27.6 | 15.7 | 26.0 | |||||||||
Suburban | 21.7 | 27.3 | 14.0 | 27.2 | 14.8 | 26.6 | 15.9 | 25.4 | |||||||||
Town | 20.7 | 23.6 | 13.8 | 25.8 | 14.7 | 24.0 | 14.4 | 19.1 | |||||||||
Rural | 19.5 | 25.0 | 13.0 | 24.8 | 14.1 | 23.0 | 15.9 | 18.1 | |||||||||
Student enrollment | |||||||||||||||||
Less than 100 | 13.3 | 16.5 | 9.5 | 13.6 | 18.5 | 21.8 | 8.2 | 10.7 | |||||||||
100-199 | 18.6 | 19.0 | 16.1 | 20.9 | 14.6 | 18.1 | 11.4 | 14.2 | |||||||||
200-499 | 20.4 | 25.3 | 14.6 | 25.1 | 14.4 | 22.4 | 15.9 | 18.2 | |||||||||
500-749 | 21.8 | 27.5 | 15.4 | 26.3 | 13.8 | 22.6 | 18.0 | 23.8 | |||||||||
750-999 | 22.5 | 28.2 | 13.1 | 26.9 | 17.4 | 24.1 | 20.3 | 26.9 | |||||||||
1,000 or more | 23.6 | 29.3 | 13.5 | 29.6 | 14.7 | 27.9 | 23.6 | 31.1 | |||||||||
Percent of K-12 students who were approved for free or reduced-price lunches | |||||||||||||||||
0-34 | 21.7 | 26.8 | 14.4 | 27.5 | 12.7 | 26.8 | 17.2 | 21.2 | |||||||||
35-49 | 21.1 | 27.9 | 12.3 | 26.4 | 14.9 | 25.1 | 15.8 | 19.5 | |||||||||
50-74 | 21.2 | 27.1 | 12.5 | 26.4 | 16.7 | 26.3 | 15.4 | 21.7 | |||||||||
75 or more | 21.0 | 25.7 | 16.5 | 26.5 | 14.8 | 25.8 | 13.4 | 19.0 | |||||||||
School did not participate in free or reduced-price lunch program | 20.8 | 23.7 | 20.8 | ! | 25.2 | 18.4 | 21.2 | 20.6 | 30.6 | ||||||||
! Interpret data with caution. The coefficient of variation (CV) for this estimate is between 30 percent and 50 percent (i.e., the standard error is at least 30 percent and less than 50 percent of the estimate). | |||||||||||||||||
1 Interpret data on city teachers with caution. After nonresponse adjustments, the nonresponse bias for this category is greater than for other characteristics. | |||||||||||||||||
NOTE: Self-contained classes are defined as instruction to the same group of students all or most of the day in multiple subjects, and departmentalized instruction is defined as instruction to several classes of different students most or all of the day in one or more subjects. Among all public school teachers, 26 percent teach self-contained classes in primary schools, 1 percent in middle schools, 1 percent in high schools, and 1 percent in combined schools; 7 percent teach departmentalized classes in primary schools, 14 percent in middle schools, 25 percent in high schools, and 4 percent in combined schools; 15 percent teach other types of classes, such as elementary subject specialist classes, team-taught classes, and "pull-out" or "push-in" classes in primary schools, 3 percent in middle schools, 3 percent in high schools, and 1 percent in combined schools. Detail may not sum to totals because of rounding. | |||||||||||||||||
SOURCE: U.S. Department of Education, National Center for Education Statistics, Schools and Staffing Survey (SASS), "Public School Teacher Data File," 2015–16. |
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