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Table C.3.02b. IEA: Trends in weekly intended and implemented instructional time for TIMSS eighth-grade science, by country: 2007

  Intended time prescribed in the curriculum   Time implemented in schools        
  Total hours of instructional time per week   Science instructional time as a percent of total instructional time   Total hours of instructional
time per week
  Science instructional time as a percent of total instructional time        
Country     2007 Hours   Difference from 2003   s.e.     2007 Percent     Difference from 2003   s.e.        
International average 27   12   28   #       11     #          
Australia 25   7   26   #       12 2    -1   0.4      
Bahrain 31   13   28   3   #   8 1    -6   0.3      
Botswana 30   13   30 2  2 ! 0.8   13 1             
Chinese Taipei 25   15   29         12              
Colombia 30   3  31         10 1             
Egypt 26   11   32   1 ! 0.6   7              
El Salvador 19   20   23         16              
England 25   15   26 2  #       14              
Ghana 27   13   28 1  1 ! 0.6   11              
Hong Kong SAR 27   13   28   #       10 2    -1 ! 0.5      
Iran, Islamic Rep. of 31   12   27   -2   0.4   11 2    #          
Israel 23   10   32   #       10 1             
Italy 30   7   31 1  #       6 2    #          
Japan 23   11   25   -3   0.3   10 1    2   0.2      
Jordan 26   14   28   3   0.4   14     -1   0.2      
Korea, Rep. of 26   12   29   -7   0.4   11 2    3   0.3      
Kuwait 30   10   26 1        6 2             
Malaysia 29   11   30   3   0.3   11     -1   0.2      
Norway 23   10   23   #       10     -1 ! 0.3      
Oman 27   17   27         13              
Palestinian Nat'l Auth. 20   11   26 1  -2   0.3   10 2    -1 ! 0.4      
Qatar 26   8   28 1        x              
Saudi Arabia   7   27 1        x              
Scotland 28   10   28 2  #       10 1             
Singapore 23   15   29   -5   #   14     4   0.3      
Sweden 3  3  26   -1   0.4                
Thailand 35   8   32         10              
Tunisia 32   13   39 1  8   0.8   5 1             
Turkey 20   10   27         8              
United States 29   13   31   2   0.3   13 2    #          
Benchmarking Participants                                          
Basque Country, Spain 30   8   30         8              
British Columbia, Canada 26   12   26         14 2             
Dubai, UAE 28   11   29 2        x              
Massachusetts, US 28   3  29         13              
Minnesota, US 29   4   30         14              
Ontario, Canada 25   3  26   #       10 1             
Quebec, Canada 25   11   26   #       11 1             
— Not available.
† Not applicable.
# Rounds to zero.
! Interpret data with caution. (Estimates are unstable.)
‡ Reporting standards not met.
∆ 2007 significantly higher.
▼2007 significantly lower.
1Data are available for at least 70 but less than 85% of the students.
2Indicates data are available for at least 50 but less than 70% of the students.
3Not prescribed by the curriculum.
Note: Intended instructional time provided by National Research Coordinators. Implemented instructional time for science provided by teachers, and total instructional time provided by schools.Total instructional time for Thailand is only applicable to the majority of schools. For Norway, hours of intended instructional time is only an estimate and only prescribed for grades 1–7 and 8–10, not for single grades. Standard errors are noted by s.e.
SOURCE: Data from the International Association for the Evaluation of Educational Achievement (IEA), Trends in International Mathematics and Science Study (TIMSS), 2007. Mullis, I.V.S., Martin, M.O., and Foy, P. (2008). TIMSS 2007 International Science Report: Findings from IEA's Trends in International Mathematics and Science Study at the Fourth and Eighth Grades, exhibit 5.2. Chestnut Hill, MA: Boston College
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National Center for Education Statistics - http://nces.ed.gov
U.S. Department of Education