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Table H118. Average age of grade 9 through 12 public school teachers and percentage distribution of teachers' age, by school type and main teaching assignment: 2008
      Percentage distribution of age  
School type and main teaching assignment Average age   Younger than 30   30–49   50–54   55 or older  
                     
Total 44   14.6   49.2   13.0   23.2  
                     
School type1                    
Regular 43   15.0   49.6   12.9   22.5  
Career or technical 47   7.7   43.9   17.1   31.4  
Other2 45   12.1   45.7   14.6   27.6  
                     
Main teaching assignment                    
Career and technical education (CTE), total 46   10.4   44.9   16.5   28.2  
Nonoccupational CTE 47   9.5   41.7   17.6   31.2  
Occupational education 46   11.2   47.5   15.6   25.7  
Agriculture and natural resources 42   25.7   41.0   15.0   18.3  
Business 46   9.7   49.5   14.3   26.5  
Communications and design 44   15.4 ! 46.9   14.6 ! 23.2  
Computer and information sciences 47     52.3   18.1   22.7  
Construction, architecture, and engineering technologies 49   6.1 ! 45.9   15.0   33.0  
Consumer, culinary, and public services 48     48.6   19.9 ! 28.1  
Health sciences 45     50.6   15.6 ! 25.4  
Manufacturing 46   7.4 ! 52.1   16.8 ! 23.6 !
Marketing 44   11.7 ! 50.8   14.5 ! 23.1 !
Repair and transportation 49     43.2   18.2   34.6  
Academic education 43   16.5   49.7   11.7   22.1  
Other3 45   11.0   50.6   15.2   23.2  
! Interpret data with caution. Estimate is unstable because the standard error represents more than 30 percent of the estimate.
‡ Reporting standards not met.
1 Excludes 9 percent of teachers with unspecified school type.
2 Other school types include special program emphasis schools, special education schools, and alternative/other schools.
3 Other teaching assignments include special education; health education; physical education; military science or Reserve Officers’ Training Corps (ROTC); religious studies, theology, or divinity; and other unspecified teaching assignments.
NOTE: 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 Questionnaire,” 2007–08.

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