If your teen’s homework looks fine but the tests keep coming back lower than they should, this article explains what might be happening in between, and what to do about it before the school year does it for you.
Parents have seen the pattern, even if nobody has named it for them yet.
Let’s see if this sounds familiar.
The homework gets done. On time, complete, correct. Your son sits down after dinner, works through the math problem set, and closes the laptop without complaint. Your daughter’s formative chapter review assignments come back with good comments. Your child is pretty independent. When you ask how school is going, the answer is “Fine.” The evidence in front of you agrees.
Then the first real test comes back, and this one counts for the report card. The homework says 90s. The test says 74%.
For years, teachers and tutors have seen what I call the Homework-Test Gap: the distance between what a student can do with the notes open and what they can do alone, in a classroom, with a blank test page. The gap isn’t new. What has changed is how wide it can now grow before anyone notices, because homework has stopped measuring what parents think it measures.
More than half of teens now have an invisible homework partner
In February 2026, the Pew Research Center released a major study on teenagers and artificial intelligence.
Before we check out the findings, let me mention that AI is not the enemy. AI can be a powerful tool, and knowing how to effectively navigate it can mean the difference between being prepared for the future and being left behind.
With that said, AI also impacts student learning, and this can’t be ignored.
Just over half of teens (54%) say they have used AI chatbots for help with schoolwork. Nearly two-thirds (64%) use chatbots overall. And here is the number that should stop you: while about half of parents say their teen uses these tools, teens themselves report much higher use. In other words, a meaningful share of parents believe their child does homework unassisted when the child does not.
The data is American, but no parent in Markham, Richmond Hill, Vaughan, or King City will find it foreign. The same tools sit on every Chromebook and phone in York Region.
One more finding rounds out the picture. A majority of teens (59%) say that using AI to cheat happens at least somewhat often at their school. That number doesn’t single out your child. It describes the water every student now swims in. Even honest, hardworking students internalize the norm that an assignment is a task to be completed rather than a skill to be built, because that is what they see happening around them every day.
Homework used to be a signal. AI cut the wire.
Here is why this matters more than one more story about technology in schools.
For decades, homework served 2 purposes at once. It built the skill through practice, and it acted as an early warning system. A student who couldn’t finish the problem set or who kept missing the main point was receiving a clear message: more practice and deeper understanding were needed for mastery (especially before this material shows up on a test). Parents could read the same message from across the kitchen table and call for support before bad became worse.
When AI arrived, it brought 2 possibilities. In one, the chatbot is a tool for learning. In the other, it becomes a crutch that actually prevents it. Used as a crutch, a chatbot can produce an answer to nearly any high school assignment in seconds (the quality and correctness of its responses is debatable). Ask it to do the work rather than support the work, and the student misses the opportunity to practice. The warning never sounds.
This is why the discovery moment is almost always a test. Tests are the last unassisted work most students do. When the notes close and the crutch is gone, the only thing left is what actually got built behind the scenes. For a growing number of families, the first in-class assessment of the semester has become the first honest data point of the year.
The gap grows widest in exactly the years that count
An earlier Pew survey, focused on ChatGPT specifically, contains a detail that matters enormously for Ontario families: use for schoolwork climbs with grade level. In that data, 31% of students in Grades 11 and 12 had used ChatGPT for schoolwork, compared with 20% of students in Grades 7 and 8.
Why does this matter? Consider the subject where the effect is visible: math. Math is cumulative. A student who leans on AI in Grade 10 Math can get by with a respectable mark despite a real gap in understanding, because the homework never required mastery. That gap grows, especially in the upper years, which are faster-paced and more difficult. In Grade 11 comes Functions, then Advanced Functions and Calculus in Grade 12. A small hole in Grade 10 snowballs into a larger one in Grade 11 and Grade 12. And Grade 12 is precisely when the snowball becomes expensive: the programs families target, such as Waterloo Engineering, U of T Computer Science, and McMaster Health Sciences, build their admission averages from Grade 12 marks. The gap that homework concealed 2 years ago appears on the transcript this year.
I’ve written about the questions ambitious families ask in Grade 10 that shape university applications, and one theme from that piece belongs here, too. Admissions readers and interviewers have become skilled at recognizing work that reads as generic and empty of lived detail. The same is now true of understanding itself. A student can carry an AI-assisted 90 through months of homework that seems fine, but the mark that reaches a transcript, and the thinking that reaches a supplementary application, must eventually be produced alone.
The families who handle this well are the ones who find the gap in Grade 10 or earlier, while there is still time to close it and catch up. The families who struggle are the ones who discover it in the first marking period of Grade 12.
Banning the tool does not build the thinking
At this point, many parents reach for the obvious response: take the tool away. Lock down the laptop, forbid the chatbot, stand guard over the homework.
I want to offer a different view, both because overbearing surveillance is hardly a sustainable method for any student and because the ban misses what is actually going on.
These students will graduate into universities and workplaces where AI is simply part of the environment. The ones who thrive there share a specific trait: they built their own understanding first, so they can direct the tool, catch its errors, and use it to extend their thinking rather than replace it. A student with strong foundations uses AI the way a good engineer uses a calculator. A student without them uses it the way a struggling swimmer uses a flotation device, and the deep end always arrives eventually.
So the useful question for a parent is whether your teen is building the kind of understanding that makes AI a lever instead of a hiding place.
Real understanding has a simple test: the blank page
How do you tell the difference between a student who understands and a student whose homework is done for them? You do not need software for this. You need 3 checks that AI cannot fake.
1. Can she explain why, not just how? A student who has genuinely learned quadratic equations can tell you why completing the square works, and why the quadratic formula is simply completing the square done once, in general, forever. A student who has outsourced the practice can apply the formula when it is labelled and set up, and falls silent the moment you ask where it comes from.
2. Can he rebuild it from a blank page? Take away the notes, the worked example, and the assistant. Give him yesterday’s problem with different numbers. Retrieval from an empty page simulates test conditions. It’s also exactly the step AI-assisted homework skips.
3. Can they teach it back? Explaining a concept out loud to another person who asks follow-up questions exposes every weak spot in understanding. There is a reason this has been the core of serious mentorship for centuries.
This is also, candidly, where I believe coordinated academic coaching separates itself from the chatbot and from homework-help tutoring in all its forms, whether that is a gig-platform freelancer or the well-meaning student down the street. A mentor who is serious about having a student explain their thinking out loud, week after week, is running the blank-page test constantly. The gap cannot hide in that room. A tutor whose primary job is to get tonight’s homework finished, and who may be leaning on the same AI shortcuts, is helping the gap grow in a friendlier font.
Find out where your teen actually stands, before the next test does it for you
Here is the peace-of-mind version of everything above.
You should not have to wonder, every time an assignment comes home complete, whether it reflects real understanding or a convincing imitation. You should not have to wait for a 74% on the first big test to get your first honest data point. And you should not have to become the homework police to avoid either one.
The alternative is simple: have someone whose job it is to check. A short diagnostic conversation with a student, built around explain-why, blank-page, and teach-it-back, reveals more than months of homework can. Closing a gap early in the semester is a manageable project. Discovering one right before final exams is a crisis.
If your teen is in Grade 9, 10, or 11, now is a good time to find out where they actually stand. Book a free 15-minute call with us. We’ll talk through your teen’s courses and what you’re seeing at home, and point you to the right next step, whether or not you ever work with us beyond that call.
The homework will keep coming home looking fine either way. The question is what is underneath it.
About the Author
Francesca Cadhit is the founder of Top Class Edge Learning, a high school academic coaching and tutoring practice serving families across York Region and the GTA. For over 15 years, she has helped students build real understanding and the study habits behind it, so their marks hold up on tests, final exams, and university applications. Her students have gone on to programs like Waterloo Engineering, McMaster Health Sciences, and U of T Computer Science. Her team of Ontario-curriculum specialists is chosen for teaching skill and matched to each student. Francesca holds an HBSc from the University of Toronto and received the Governor General’s Academic Medal.
You can reach Francesca at francesca@topclassedge.com.
Sources
- Pew Research Center, “How Teens Use and View AI,” February 24, 2026
- Pew Research Center, “About a Quarter of U.S. Teens Have Used ChatGPT for Schoolwork,” January 15, 2025