1Does homework actually raise achievement?
Both sides use the same research and read it differently.
Supporters say practice at home helps learning stick. Critics say it steals sleep and family time and favours richer students.

Homework is schoolwork that teachers set for students to do outside class: practice problems, reading, essays and projects. Almost every school system uses it, but how much students should get, at what age, and whether it really helps are among the oldest arguments in education.
The fight is not new. In 1901 California passed a law abolishing homework for children 14 and younger, but after the Soviet Union launched the Sputnik satellite in 1957, worried Americans pushed for more of it.14
Across OECD countries, 15-year-olds spent almost five hours a week on homework in 2012, about an hour less than in 2003. Students in Shanghai averaged 14 hours a week, while those in Finland and Korea did under three.2 In the United States, teens aged 15 to 17 spent about an hour a day on homework in the mid-2010s, up from 44 minutes a decade earlier.21 Yet only 13% of 17-year-olds reported more than two hours a night in 2012,13 and by 2020, 36% of 13-year-olds said they had no homework at all.25
The research is mixed. A 2006 Duke University review of more than 60 studies, led by Harris Cooper, found that homework is linked to higher achievement, much more strongly in grades 7 to 12 than in elementary school. Even so, Cooper warned that “overloading them with homework is not associated with higher grades.”1 In England, the Education Endowment Foundation estimates that homework adds about five months of progress in secondary school, but it rates the evidence as low.11
Critics point to stress. A 2014 Stanford study of 4,317 students at 10 high-performing California high schools found they averaged about 3.1 hours of homework a night, and 56% called homework a primary source of stress. Many described headaches, exhaustion and sleep deprivation.3 Fairness is another worry: in 2018, 17% of US teens said they could not always finish homework because they lacked a reliable computer or internet connection.4
Some places have acted. In 2017 Marion County, Florida, ended daily homework for about 20,000 students in 31 elementary schools and asked families to read together for 20 minutes a night instead.5 In 2021 China banned written homework for first and second graders and capped junior high homework at 90 minutes a day.8 By early 2022 its education ministry said more than 90% of students could finish written homework in the set time.9 In Spain, a parents' alliance covering some 12,000 state schools called a strike against weekend homework in November 2016.10
The main fault lines are age, amount and fairness. In 2012 French President François Hollande said, “Work should be done at school, rather than at home,” arguing that richer families can help their children more.20 Others replied that poorer families see homework as their children's route to a better life.19 Few people argue for unlimited homework, and few for none at all. The real debate is whether homework, as schools actually use it, does more good than harm.
Most homework debates are won or lost on these four questions.
Both sides use the same research and read it differently.
A question of amount as much as principle.
Both sides say they are protecting disadvantaged children.
A question of values. No statistic settles it.
China: in July 2021 the Communist Party Central Committee and the State Council issued the “double reduction” plan, which limits homework to 60 minutes a day for grades 3 to 6 and 90 minutes for junior high, and bans written homework in grades 1 and 2.78
Europe: Spanish 15-year-olds did 6.5 hours of homework a week in 2012, fifth highest of 38 countries, which helped spark a parents' strike in 2016.10 In France, a 2012 proposal to end homework in elementary and junior high schools divided parents.19
The global picture: homework time fell in 31 of 38 countries with comparable data between 2003 and 2012. Finland and Korea average under three hours a week.2
Debate tip: comparing countries is useful evidence on both sides. Con can point out that Finland and Korea set under three hours a week; Pro can point to Singapore, Japan and Hong Kong, where schools that set more homework score higher in math.2
For class or club discussion. There are no right answers; ask for reasons and evidence.
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