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Table 7.  Percentage of public schools that used various methods to organize classes or student groups and percentage of public schools that used a year-round calendar, by state: 2003–04

  Percent of schools that used various methods to organize classes or student groups     
State  Traditional grades or academic discipline-based departments  Grades subdivided into small groups such as "houses" or "families"  Student groups that remain 2 or more years with the same teacher (e.g., looping)  Interdisciplinary teaching  Paired or team teaching  Block scheduling  Percent of schools that used a year-round calendar   
United States  85.9 15.1 21.4 36.4 36.1 34.5 5.5  
                 
Alabama  80.7 7.4 11.4 19.7 23.9 26.8 6.4  
Alaska  74.8 16.7 49.2 50.2 37.0 46.4 0.6 !
Arizona  84.9 10.1 22.9 32.4 28.8 39.4 7.9  
Arkansas  83.0 11.3 11.9 36.4 36.5 23.1 2.1  
California  81.4 8.7 21.0 31.6 26.0 23.2 17.8  
                 
Colorado  89.0 14.0 30.9 31.3 39.0 51.0 7.8  
Connecticut  86.0 22.9 19.6 49.5 52.8 33.2 5.0  
Delaware  79.9 20.2 23.3 51.4 63.8 47.2 2.6  
District of Columbia  85.3 17.1 44.5 58.1 36.7 65.8 8.9  
Florida  89.8 20.2 24.4 41.2 37.5 39.5 9.3  
                 
Georgia  88.9 17.8 21.2 45.7 58.4 40.6 5.0 !
Hawaii  86.5 31.4 16.8 40.1 38.4 42.6 45.7  
Idaho  91.2 17.0 19.0 38.1 27.2 39.5 2.6 !
Illinois  89.5 16.5 18.9 30.4 27.9 26.2 2.7  
Indiana  87.3 14.8 22.1 32.2 30.4 32.6 1.5 !
                 
Iowa  90.5 10.1 20.3 37.9 33.8 33.4 #  
Kansas  90.5 15.7 14.8 30.2 24.3 28.4 #  
Kentucky  85.0 34.0 28.9 40.4 49.1 41.6 9.2  
Louisiana  74.4 11.7 9.8 25.3 25.7 34.8 8.4  
Maine  83.1 12.8 40.7 46.4 38.6 56.8 1.2 !
                 
Maryland  92.5 15.0 16.0 41.2 53.8 63.1 3.5 !
Massachusetts  90.8 19.6 18.0 41.6 40.7 42.8 0.3 !
Michigan  82.2 14.6 21.7 41.2 39.9 38.0 6.3  
Minnesota  85.7 18.8 25.9 40.1 31.7 29.5 5.2 !
Mississippi  72.4 7.3 12.4 26.8 20.9 36.3 4.8  
                 
Missouri  85.0 11.1 20.1 28.7 30.7 37.7 5.0  
Montana  88.0 4.8 36.3 30.1 29.2 26.4 1.6 !
Nebraska  81.3 17.7 32.2 26.8 33.1 18.2 0.8 !
Nevada  86.9 11.8 27.8 33.3 50.1 29.7 16.8  
New Hampshire  91.6 25.4 38.7 48.9 46.7 36.7 #  
                 
New Jersey  86.0 12.3 19.5 40.1 56.6 25.3 0.9 !
New Mexico  84.5 16.6 22.4 48.7 42.3 41.3 3.0 !
New York  90.6 20.1 32.3 54.0 64.2 41.1 2.7 !
North Carolina  87.7 19.7 15.7 44.8 40.4 53.7 4.7  
North Dakota  84.5 7.2 21.1 18.0 17.4 11.7 0.5 !
                 
Ohio  93.0 16.8 16.4 35.0 35.8 35.3 2.4 !
Oklahoma  86.8 7.0 8.5 21.2 17.5 10.2 3.7  
Oregon  84.1 17.7 44.1 28.4 17.8 36.6 2.4 !
Pennsylvania  92.0 19.3 21.5 36.4 42.7 36.7 2.1 !
Rhode Island  87.3 20.9 23.7 38.9 49.5 44.6 2.5 !
                 
South Carolina  82.9 17.3 16.1 32.0 25.0 39.8 6.1  
South Dakota  91.6 12.7 29.2 20.2 17.6 25.6 1.7 !
Tennessee  85.1 12.6 18.7 21.5 21.4 22.7 5.3  
Texas  82.2 11.6 11.3 35.1 26.2 32.6 5.0  
Utah  77.6 10.8 15.1 44.0 28.4 32.3 9.4  
                 
Vermont  84.4 21.8 58.2 50.5 42.3 51.3 1.3 !
Virginia  89.1 22.1 23.2 43.3 57.1 39.8 2.5  
Washington  87.3 17.4 39.6 41.5 34.8 51.6 1.4 !
West Virginia  87.4 10.2 9.3 24.7 35.3 22.6 2.7 !
Wisconsin  85.0 21.5 25.4 45.0 53.9 32.2 2.2 !
Wyoming  74.1 16.9 31.3 33.7 35.2 35.6 2.3 !
# Rounds to zero.
! Interpret data with caution. The standard error for this estimate is equal to 50 percent or more of the estimate's value.
NOTE: The Schools and Staffing Survey School questionnaires define block scheduling as the scheduling of class periods to create extended instructional blocks of time. Schools may choose more than one method to organize classes or student groups.
SOURCE: U.S. Department of Education, National Center for Education Statistics, Schools and Staffing Survey, Public School Data File, 2003–04.

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