Research Questions About Homework

Homework can cause family friction, particularly when middle class parents pressure their children to succeed, according to a report published today by London University's Institute of Education.

And the benefits of homework are often negligible, concludes Susan Hallam in her review of 75 years' worth of studies into homework. The issue has been causing controversy for generations in the US, Europe, Australia, the Far and Middle East, as well as the UK.

Dr Hallam urges schools to focus on the purpose and quality of homework, not the amount, and makes a case for homework being done in out-of-hours school clubs rather than at home.

At home, rows about homework can damage the parent-child relationship and outweigh any educational advantage, she says.

"Homework can also create anxiety, boredom, fatigue and emotional exhaustion in children, who resent the encroachment on their free time, even though they think homework helps them do well at school," believes Dr Hallam.

Her book, Homework: the Evidence, finds that family rows can lead to homework being deliberately not completed. "Parental help may also develop dependency or helplessness in the child."

She adds: "Parents have the most positive influence when they offer moral support, make appropriate resources available and discuss general issues. They should only actually help with homework when their children specifically ask them to."

Dr Hallam feels the evidence points to the effectiveness of homework clubs, which give children the benefits without the rows at home: "Children feel [clubs] make homework more enjoyable and give them a better chance of passing exams.

"They provide a suitable learning environment with appropriate resources and adult help if necessary, and they take the pressure off the parents. They may assist in raising standards for those who need extra support or who find it difficult to do homework at home. As such they help to bridge the gap between the haves and the have nots," she says.

Homework can boost achievement, but only when set in moderate amounts, argues Dr Hallam. She says the government's guidance of one hour a week for five to seven-year-olds, rising to two and a half hours a day for GCSE students, is untested.

Dr Hallam asserts that the overall contribution that homework makes to school achievement is small compared with prior knowledge, the time spent on task, good attendance at school, motivation and self-confidence.

· Homework: The Evidence by Susan Hallam is available from the Institute of Education, +44 (0)20 7612 6050,

Woe unto the administrator who ventures forth into the homework wars.

Scale it back, and parents will be at your door complaining about a lack of academic rigor. Dial it up, and you’ll get an earful from other parents about interference with after-school activities and family time.

If you’re looking to bolster your particular position with research results, you’re in luck, because there are studies that back the more-is-better approach and others that support the less-is-better tack.

“Homework has been a hot topic for a number of years now because it affects so many people,” says Robert H. Tai, a professor at the University of Virginia’s Curry School of Education who has researched the topic and conducted a 2012 study, “When Is Homework Worth the Time?” After studying transcripts and data for more than 18,000 sophomore students nationwide, he found no significant relationship between time spent on homework and grades, but did find a positive relationship between homework and performance on standardized tests. “Homework should act as a place where students practice the skills they’ve learned in class,” Tai says. “It shouldn’t be a situation where students spend many hours every night poring over something [new].”

In Favor of Homework

A 2004 national survey conducted by the University of Michigan found that the amount of time spent on homework had risen 51 percent since 1981. Most of this increase was found among younger students, with daily homework for 6- to 8-year-olds increasing, on average, from about 8 minutes in 1981 to 22 minutes in 2003.

There is a positive relationship between the amount of homework students do and their achievement outcomes, according to a 2006 study by Harris Cooper, director of Duke University’s Program in Education, which analyzed and combined the results of dozens of homework studies. The studies found that students who had homework performed better on class tests compared to those who did not. Twelve studies linking the amount of homework to achievement and controlling for other factors, such as socioeconomic status, also found a positive link. Of 35 studies that simply correlated homework and achievement, with no attempt to control for student differences, about 77 percent also found a positive link between time on homework and achievement.

However, says Cooper, there was one group in the study for which homework was not correlated with achievement: elementary school students. For these children, the report states that “the average correlation between time spent on homework and achievement … hovered around zero,” or no relationship. This may be because younger students have less-developed study habits and are less able to tune out distractions at home, Cooper says.

The Case for Less

Other research has yielded other interpretations about the usefulness of homework. The authors of “Reforming Homework: Practices, Learning and Policies” (Palgrave Macmillan, 2012) evaluated homework research and concluded that it does not significantly impact achievement— and can even be detrimental. One study from Penn State that analyzed data from the late 1990s found that, in countries with high homework demands, student performance on the international test of achievement known as Trends in Mathematics and Science Study was poorer than those with less rigorous after-school assignments. The authors, both professors at Australian universities, do not call for a homework ban, but they do recommend less homework, as well as homework assignments of a higher quality, rather than large amounts of drill and practice work.

Further, Tai and colleagues’ study, “When Is Homework Worth the Time?” also found that sophomores who spent more time on after-school assignments did not fare any better or worse with grades, but did perform better on standardized tests. “Based on our research, it appears that the most effective use of homework may be to help students sharpen their skills with things that they already know how to do, rather than trying to use homework as an extension of class time,” Tai says. Issues often arise when students and parents do not understand the aim of the homework assignments, Tai adds, and it is imperative for teachers to make the purpose clear.

A 2011 study in the Journal of Advanced Academics found that it was the sense of self-effcacy students felt while completing homework assignments, and the availability of resources (such as a quiet place to work and access to a computer) that led to increased mathematics achievement on an international exam. And students who spent more time on homework performed worse on the exam, the researchers found. “Although this was a surprising finding, a lack of understanding of a subject can lead to ineffcient and disproportionate effort, as well as diminished motivation,” the study states. The researchers add, “This observation fits the notion that students who have low mathematics scores and spend more time on mathematics homework do it precisely because of low self-effcacy and fewer support resources.”

International Debate

In 2012, Finland and South Korea came in at numbers 1 and 2, respectively, on the Global Index of Cognitive Skills and Education Attainment, which ranks countries based on international test scores, literacy, and graduation rates (the United States was ranked at number 17). Though their students occupy the top spots globally, these two nations approach homework and learning in radically different ways.

Finland follows a European educational model, characterized by short school days and few homework assignments. South Korea, like many East Asian countries, in contrast, has long school days followed by tutoring sessions and a focus on rote learning assignments. “It is hard to find two education systems more different,” says the rankings report “The Learning Curve: Lessons in Country Performance in Education.” The report adds, “Closer examination, though, shows that both countries develop high-quality teachers, value accountability and have a moral mission that underlies education efforts.”

France, ranked at number 25, is considering a different approach: last fall, the French government proposed doing away with homework in elementary and junior high school altogether, arguing that it puts poorer students and those with difficult home situations at a disadvantage. “Education is priority,” French President Francois Hollande said in an October speech at Paris’s Sorbonne University. “An education program is, by definition, a societal program. Work should be done at school, rather than at home.”

Nontraditional Models

Now, the very concept of homework is being disrupted by the advent of the flipped classroom, which involves a teacher’s presentation being delivered outside of class, via a video that students view at home, while class time is used for active problem solving by students (which would traditionally be considered ‘homework’) and one-to-one or small group tutoring with the teacher, says Kari Arfstrom, executive director of the Flipped Learning Network, a national clearinghouse on the method.

Clintondale High School in the Clintondale (Mich.) Community School District uses flipped learning, which helped students make strides in homework. The district has 75 percent of its students receiving free or reduced-price lunch. And three years ago, the school began transitioning to a flipped model to try to engage a struggling student population. “Homework completion rates were around 30 percent, and kids were struggling when we asked them to practice at home,” says Principal Greg Green. “We decided to look at reversing it, and doing homework in school.”

Today, Clintondale students complete miniature lessons at home, which could involve watching a presentation, reading, or reviewing information, Green says, but most of the work, such as writing essays and performing math problem sets, is done in class. Students will have a half an hour of work per night on average, Green says, often watching two or three videos that are five to seven minutes long each.

The results have been positive: The school’s average student failure rate dropped from around 35 percent to under 10 percent since implementing the flipped model, Green says, and state test scores increased in every subject. Attendance went up about 4 percent, now hovering around 94 percent, and the graduation rate increased from 80 to 90 percent. “It’s been quite an evolution here,” Green says, in large part because “teachers are there to offer effective feedback and clarify when students may be struggling. Research tells us we should have kids engaged in rigorous content, have access to technology, and give immediate feedback, and this allows us to give it to them.”

How Much Is Enough?

According to a parent guide released by the National PTA and the National Education Association, most educators agree that for K2 students, homework is more effective when it does not exceed 10-20 minutes daily; for students in grades 3-6, 30-60 minutes a day is adequate; and in junior and senior high, the amount of homework will vary by subject, with many district policies stating that high school students should expect about 30 minutes of homework per course. 

Harris Cooper of Duke University concludes, in an op-ed piece distributed by the Duke University Offce of Communications:

—Practice assignments improve scores on class tests at all grade levels

—A little amount of homework may help elementary school students build study habits

—Homework for junior high students appears to reach the point of diminishing returns after about 90 minutes per night

—For high school students, homework is effective until between 90 minutes and 2-1/2 hours of homework a night, after which returns diminish.

It remains diffcult to show causation between increased homework and higher achievement, due to influencing factors such as teacher effectiveness and class participation, researchers say. Most agree that homework should be purposeful, and that more does not translate to better.

“Busy work turns students off from learning,” says Lynn Fontana, chief academic offcer of Sylvan Learning, a national tutoring chain that provides homework help for pre-K12 students. “If they can see the connection between what they’re doing as homework and what they need to know [for class], they are much more willing to do the homework.”

Alison DeNisco is staff writer.

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