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Primary schools | Middle schools | High schools | Combined grade schools | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | 20.9 | 26.2 | 16.6 | 24.9 | 16.3 | 23.3 | 15.6 | 18.6 | ||||||||
School classification | ||||||||||||||||
Traditional public | 20.9 | 26.2 | 16.1 | 24.9 | 15.8 | 23.4 | 13.8 | 17.5 | ||||||||
Charter school | 22.1 | 26.1 | 25.5 | 25.2 | 25.5 | 21.5 | 22.3 | 22.6 | ||||||||
Community type | ||||||||||||||||
City | 21.4 | 28.1 | 17.6 | 25.3 | 17.7 | 24.5 | 15.2 | 20.6 | ||||||||
Suburban | 21.3 | 27.2 | 15.5 | 25.5 | 15.3 | 24.3 | 16.1 | 20.0 | ||||||||
Town | 20.5 | 25.1 | 18.3 | 23.9 | 16.8 | 21.3 | 17.1 | 18.5 | ||||||||
Rural | 19.5 | 23.2 | 16.0 | 23.3 | 15.9 | 20.8 | 15.4 | 17.0 | ||||||||
Student enrollment | ||||||||||||||||
Less than 100 | 14.8 | 15.7 | ‡ | 17.4 | 18.3 | 16.0 | 8.9 | 10.2 | ||||||||
100–199 | 17.7 | 20.1 | 20.6 | 18.7 | 17.5 | 15.7 | 10.6 | 12.0 | ||||||||
200–499 | 20.4 | 24.8 | 18.6 | 22.5 | 19.2 | 19.2 | 16.7 | 16.9 | ||||||||
500–749 | 21.4 | 27.9 | 14.5 | 24.6 | 16.9 | 21.0 | 19.0 | 21.3 | ||||||||
750–999 | 22.3 | 28.7 | 16.3 | 25.7 | 19.2 | 22.2 | 18.7 | 21.9 | ||||||||
1,000 or more | 22.1 | 26.4 | 16.5 | 27.1 | 14.9 | 25.0 | 22.5 | 23.7 | ||||||||
Percent of K–12 students who were approved for free or reduced‑price lunches |
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0–34 | 21.0 | 25.8 | 16.2 | 22.8 | 22.1 | 20.0 | 21.5 | 18.9 | ||||||||
35–49 | 20.8 | 24.8 | 14.5 | 24.9 | 14.5 | 23.2 | 16.6 | 18.8 | ||||||||
50–74 | 20.5 | 26.1 | 19.1 | 24.8 | 16.4 | 23.1 | 14.1 | 17.3 | ||||||||
75 or more | 20.8 | 26.8 | 17.2 | 24.1 | 15.8 | 23.5 | 13.8 | 19.2 | ||||||||
‡ Reporting standards not met. The coefficient of variation (CV) for this estimate is 50 percent or greater (i.e., the standard error is 50 percent or more of the estimate) or the response rate is below 50 percent. | ||||||||||||||||
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, 25 percent teach self-contained classes in primary schools, 1 percent in middle schools, 1 percent in high schools, and 1 percent in combined schools; 8 percent teach departmentalized classes in primary schools, 14 percent in middle schools, 24 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. | ||||||||||||||||
SOURCE: U.S. Department of Education, National Center for Education Statistics, National Teacher and Principal Survey (NTPS), “Public School Teacher Data File,” 2017–18. |
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