Table of Contents
Chapter
5
© 2001 International Association for the Evaluation of Educational Achievement (IEA)


How Much of Their OutofSchool Time Do Students Spend on Homework During the School Week?One of the main ways for students to consolidate and extend classroom learning is to spend time out of school studying or doing homework. Wellchosen homework assignments can reinforce classroom learning, and by providing a challenge can encourage students to extend their understanding of the subject matter. Homework also allows students who are having trouble keeping up with their classmates to review material taught in class. To summarize the amount of time typically devoted to homework in each country and Benchmarking jurisdiction, TIMSS constructed an index of outofschool study time (OST) that assigns students to a high, medium, or low level based on the amount of time they reported studying mathematics, science, and other subjects. Students at the high level reported spending more than three hours each day out of school studying all subjects combined. Students at the medium level reported spending more than one hour but not more than three, while those at the low level reported one hour or less per day. Exhibit 4.6 shows the percentages of students at each level of this index, and their average mathematics achievement, for Benchmarking participants and comparison countries. On average across all the TIMSS 1999 countries, 38 percent of eighthgrade students were at the high level of the outofschool study time index, and a further 48 percent were at the medium level. Only 14 percent, on average, were at the low level, with just one hour of homework or less each day. The United States was one of the countries with relatively little emphasis on homework, with just 22 percent of students at the high level and 23 percent at the low level. Among Benchmarking participants, the jurisdictions that reported the greatest amount of outofschool study time included the Jersey City and Chicago Public Schools, and the Academy School District, which each had more than onethird of their students at the high level of the index. On average internationally, and in many of the Benchmarking entities, students at the low index level had lower average mathematics achievement than their classmates who reported more outofschool study time. However, spending a lot of time studying was not necessarily associated with higher achievement. In many of the Benchmarking entities, students at the medium level of the study index had average achievement that was as high as or higher than that of students at the high level. This pattern suggests that, compared with their higherachieving counterparts, the lowerperforming students may do less homework, either because they simply do not do it or because their teachers do not assign it, or more homework, perhaps in an effort to keep up academically. More detailed information on the amount of time students reported spending on mathematics homework is presented in Exhibit 4.7. The results reveal that while students on average across all the TIMSS 1999 countries spent 1.1 hours per day doing mathematics homework, students in most of the Benchmarking jurisdictions and the United States spent somewhat less. The exhibit also shows the percentages of students that reported spending one hour or more, less than one hour, and no time at all studying mathematics or doing mathematics homework on a normal school day, together with their average mathematics achievement. On average across all countries, 40 percent of students reported spending one hour or more per day doing mathematics homework. None of the Benchmarking states reported this much homework, but three school districts did – the Academy School District (41 percent), the Chicago Public Schools (48 percent), and the Jersey City Public Schools (44 percent). The next highest levels of mathematics homework were reported in Illinois, North Carolina, Guilford County, the MiamiDade County Public Schools, and Montgomery County, where 30 percent or more of students reported spending one hour or more. At least 20 percent of the students in Missouri, Texas, and the Project SMART Consortium reported spending no time at all doing mathematics homework on a normal school day. Further detail on the student data that underlie the outofschool study time index appears in Exhibit R1.9 in the reference section. In comparison with the approximately one hour each day spent on mathematics homework, the TIMSS 1999 countries on average reported 2.8 hours of homework in total. None of the Benchmarking jurisdictions reached this level, the highest being 2.7 hours in Chicago and Jersey City, and the lowest 1.8 hours in Texas, the Fremont/Lincoln/Westside Public Schools, and Project SMART. To provide a fuller picture of how students spend their outofschool time on a school day, Exhibit R1.10, also in the reference section, gives students’ reports on how they spend their daily leisure time. The two most popular activities internationally were watching television or videos and playing or talking with friends (each about two hours per day). Among Benchmarking participants, students generally reported spending a little more time on these activities and on sports, and less time reading for enjoyment. For example, in the four jurisdictions with the lowest average mathematics achievement – the public school systems of Jersey City, Chicago, Rochester, and MiamiDade – students reported watching television or videos for about three to three and onehalf hours (as well as playing computer games for about one hour). 
TIMSS 1999 is a project of the International
Study Center
Boston College, Lynch School of Education