How Much Homework is Too Much?
When my eldest daughter Jenna was in high school, she had a Latin class through our local Catholic co-op that gave her a lot of grief. No matter how much she worked and studied, her grades were always in the dumps. The course started to become a source of considerable anxiety. Being a bit of a perfectionist, Jenna was determined to finish the semester strong, and as the finals approached, she was spending more and more time each day working on her translations.
One night, I woke up from bed around 11:30 and went into the kitchen to get some water. I saw Jenna at the kitchen table, hunched over her Latin book with pages of notes and flashcards scattered around her. She’d been there for hours! The poor girl was clearly flustered and looked as miserable as you can imagine. I walked up to her, closed the book, and ordered her to go to bed. She made a feeble protest about not being done, but I said, “There’s no point in doing any more. Go to sleep.” She dutifully obeyed and sauntered off to bed.
Did she get an incomplete on the assignment? You bet she did! Would an extra half hour of additional work on top of the hours she’d already put in have made a difference? The science says… probably not.
The Principle of Diminishing Returns
Homework, like anything else in life, is subject to the principle of diminishing returns. This means that the benefit we get from performing a certain action diminishes over time until. Eventually, you reach a plateau point where additional effort yields no additional benefit and becomes counterproductive.
At what point does homework become counterproductive?
This was the very question that Stanford Graduate School of Education set out to answer in a 2014 study. Over 4,000 students from high-performing high schools were studied to examine homework, behavior management, and student well-being. The results of the study challenged the traditional idea that more homework is “better” for learning.
The Optimal Zone: 90 to 120 Minutes
The Stanford study found that the optimal amount of homework for high school students is at least 90 minutes but no more than 120 minutes (2 hours) per day. The research suggests students gain the most academic benefits within this window (including spaced practice, retention, and independent study habits) without the stress, mental health costs, and lost personal time that come with heavier loads. Within that range, assignments are more likely to serve a genuine learning purpose rather than become mechanical, mind-numbing busywork, while leaving ample time for extracurricular activities and recreation.
Benefits plateau sharply after 2 hours per day. Beyond this, not only does homework yield minimal academic benefits, but it also starts being positively counterproductive.
Consequences of Too Much Homework
The Stanford study identified several negative outcomes when students spent more than 2 hours per day on homework, with negative effects that increased proportionally as the homework load grew. Some of these negative outcomes include:
- Greater stress: Homework ranked as the top source of stress for 56% of students surveyed, with tests following at 43% and grade pressure at 33%. Fewer than 1% of students reported that homework caused them no stress at all.
. - Health consequences: Many students described homework-related sleep deprivation and other physical health problems in their open-ended responses. Researchers specifically asked about headaches, exhaustion, sleep deprivation, weight loss, and stomach issues.
. - Crowded-out personal life: Survey results and student responses both pointed to the same pattern: heavy homework loads left students without enough time to develop socially or build life skills outside academics. Students frequently reported dropping extracurriculars, spending less time with friends and family, and abandoning personal hobbies.
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Maintaining a Holistic View of Homework
The Stanford study suggests that 90 to 120 minutes of daily homework is optimal for high schoolers across all subjects. How can we use this knowledge to craft a homework regimen that is optimal for our children?
A long-standing recommendation from the National Education Association and the National PTA is helpful here. The rule of thumb is 10 minutes of homework per grade level, starting from 1st grade. So, for example, 20 minutes of homework is suitable for a 2nd grader, whereas 60 minutes is fine for a 6th grader. Using this formula, a 12th grader would get 120 minutes. This rule has been widely accepted across the academic community and is a good starting point.
This also helps you keep your individual assignments within reasonable bounds. Parents and educators often fall prey to what I call “course-myopia” when it comes to assigning homework. This means we tend to consider our own subjects in isolation, without reference to all the other coursework a student needs to complete. For example, suppose you are homeschooling literature with your child while she does her other classes at a co-op. You assign her a reading assignment to complete for an hour a day. You may think, “It’s not much; it’s only an hour.” However, if her four other teachers are all doing the same thing, there’s a problem! Inasmuch as you are able, it’s important to have a holistic view of your child’s homework obligations, because it is very easy for them to become overloaded without you even realizing it.
Slowing Down if Necessary
Going back to Jenna at that kitchen table: closing her Latin book and sending her to bed was the right call, even if it stung her perfectionist sensibilities. The goal was never to maximize the hours she put in, but to get her to the finish line healthy, rested, and still capable of learning. With homework, it is definitely quality over quantity—performing homework in a better state of mind is preferable to simply doing more of it.
We are not always in control of what our children are assigned when we entrust them to other tutors or programs. Even so, we can keep a watchful eye on the total load they’re carrying and step in when it starts doing more harm than good. One of the great things about homeschooling is that parents are ultimately in charge of the schedule. Sometimes it’s okay to spread lessons over a longer period to lighten the daily grind.
What are your thoughts on this topic? I invite you to join other homeschooling parents and me in the Homeschool Connections Community or our Facebook group.
