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1987–88 | 1990–91 | 1993–94 | 1999–2000 | 2003–04 | 2007–08 | 2011–12 | 2015–16 | ||||||||||||||||||||||||||
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Characteristic | Average number of hours | Percentage of student school week | Average number of hours | Percentage of student school week | Average number of hours | Percentage of student school week | Average number of hours | Percentage of student school week | Average number of hours | Percentage of student school week | Average number of hours | Percentage of student school week | Average number of hours | Percentage of student school week | Average number of hours | Percentage of student school week | |||||||||||||||||
English | 11.0 | 35.0 | 10.5 | 32.9 | 10.9 | 34.0 | 10.9 | 33.6 | 11.6 | 35.5 | 11.7 | 35.6 | 11.4 | 34.1 | 10.3 | 30.3 | |||||||||||||||||
Mathematics | 4.9 | 15.4 | 4.9 | 15.3 | 5.3 | 16.4 | 5.7 | 17.4 | 5.4 | 16.5 | 5.6 | 16.9 | 5.9 | 17.7 | 5.8 | 17.1 | |||||||||||||||||
Social studies | 2.8 | 8.7 | 2.9 | 9.1 | 3.0 | 9.5 | 2.9 | 8.9 | 2.5 | 7.6 | 2.3 | 7.1 | 2.4 | 7.1 | 2.1 | 6.2 | |||||||||||||||||
Science | 2.6 | 8.1 | 2.7 | 8.4 | 3.0 | 9.2 | 2.6 | 8.1 | 2.3 | 7.1 | 2.3 | 7.1 | 2.5 | 7.4 | 2.2 | 6.5 | |||||||||||||||||
Total of four subjects | 21.2 | 67.1 | 21.0 | 65.8 | 22.1 | 69.2 | 22.1 | 68.0 | 21.8 | 66.7 | 21.9 | 66.8 | 22.2 | 66.3 | 20.4 | 60.1 | |||||||||||||||||
Total time spent delivering instruction | 27.9 | 88.4 | — | — | — | — | — | — | 29.6 | 90.6 | 31.2 | 94.7 | 31.7 | 95.1 | 28.6 | 84.6 | |||||||||||||||||
Length of student school week | 31.6 | † | 31.9 | † | 32.1 | † | 32.6 | † | 32.6 | † | 33.0 | † | 33.3 | † | 33.8 | † | |||||||||||||||||
— Not available; data were not collected. | |||||||||||||||||||||||||||||||||
† Not applicable; student school week variable is used as the denominator. | |||||||||||||||||||||||||||||||||
NOTE: Due to school-level nonresponse, estimates in the row reporting "Length of student school week" are not available for all teachers in the sample. The reported estimates are for those teachers from responding SASS (1987-88 through 2011-12) and NTPS (2015-16) schools. Estimates in the "Percentage of student school week" columns are similarly affected. 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 Teacher Data File," 1987–88, 1990–91, 1993–94, 1999–2000, 2003–04, 2007–08, and 2011–12; "Public School Data File," 1987–88, 1990–91, 1993–94, 1999–2000, 2003–04, 2007–08, and 2011–12; "Charter Teacher Data File," 1999–2000; "Charter School Data File," 1999–2000; and National Teacher and Principal Survey (NTPS), "Public School and Public Teacher Data Files," 2015–16. | |||||||||||||||||||||||||||||||||
List of Tables | Download Excel (15 KB) | Download SE Excel (14 KB) |