Skip Navigation

Average number of hours and percentage of the student school week that regular full-time public school teachers of first- through fourth-grade, self-contained classrooms spent on each of four subjects, total instruction hours per week on four subjects, total time spent delivering all instruction per week, and average length of student school week: Selected years 1987–88 through 2011–12

 
    1987–88   1990–91   1993–94   1999–2000   2003–04   2007–08   2011–12
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
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
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
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
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
                                                       
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
Total time spent delivering instruction   27.9   88.4               29.6   90.6   31.2 94.7 31.7   95.1
Length of student school week   31.6     31.9     32.1     32.6   32.6     33.0 33.3  
– 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 "Length of student school week" row and "Percentage of student school week" columns are not available for all teachers in the sample and the reported estimates are for those teachers from responding SASS schools. All other estimates include all regular full-time teachers of any of grades 1–4. Regular full-time teachers are those who reported spending most of their time during the school year as a regular full time teacher and not an itinerant, teacher aide, long-term substitute, or other type of staff who taught regularly scheduled classes. 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; and "Charter School Data File," 1999–2000.