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Finding out your teenager has copied their physics or maths assignment from a classmate can be upsetting. Your first instinct might be to punish them or ban phone calls. However, research into why students cheat suggests that copying is rarely about laziness or a lack of morals. More often, it is a desperate response to time pressure or a gap in their understanding.
Is copying homework common?
If your child has copied an assignment, they are far from the only one. Research consistently shows that homework copying is a widespread practice in middle and high schools.
According to surveys by Challenge Success, a non-profit affiliated with the Stanford Graduate School of Education, as many as 90% of middle school students have reported copying another student's homework. The numbers remain high in secondary education, driven largely by academic stress. In high-performing schools, 75% of students report being often or always stressed by their schoolwork, and 59% feel they simply have too much homework to complete.
When a student is juggling school, coaching classes and exams, copying is often rationalised as a necessary time-management tool rather than a deliberate attempt to cheat.
Why do students copy homework?
When students fall behind or do not understand a topic, they often feel that copying is the only way to avoid losing marks.
A classic 2010 study by MIT physics educators tracked students' online homework submissions in detail and found that time pressure was the "proximate cause" of copying. Students who copied assignments typically started much later than their peers, completing only about 15% of their work two days before the deadline, compared to 50% for non-copiers.
The study also noted that copying was three times higher after midterm exams than during the first three weeks of the term. As the workload piles up and fatigue sets in, the temptation to take a shortcut grows stronger. If your child is overwhelmed by their schedule, you might want to look at how much homework helps and see if their daily workload is excessive.
What happens when a child copies homework?
It is easy for a student to think that skipping one assignment will not matter, especially if they plan to study the topic later. But the MIT study showed that the habit has severe, compounding consequences for learning.
The researchers identified a group of "repetitive copiers"—students who copied more than 30% of their homework problems. These students were over three times more likely to fail the course than those who did their own work.
The damage was most obvious in analytical problems, where copying correlated with a 2-sigma decline in performance on similar questions during final exams. When a student copies the final steps of a physics or maths problem, they miss out on the crucial struggle of setting up the equations and applying the concepts. Over a term, these missed opportunities leave them unprepared for the rigours of an exam hall.
What to do if your child copies homework from friends?
If you catch your child copying, the goal is to break the habit and restore their confidence, not just to punish the single incident.
Stay calm and ask why. Do not treat it as a moral failing or launch into a lecture about honesty. Ask them what made the assignment so difficult.
Check their schedule. Are they sleeping enough? Are their coaching classes eating up all their self-study time? Sometimes, dropping one extracurricular activity can give them the breathing room they need.
Talk to the teacher. Ask the school if there are foundational gaps, and work together on a plan. Teachers often appreciate knowing when a student is struggling, as it allows them to adjust their instruction. (If you feel out of your depth when discussing technical subjects, read our guide on parents' maths anxiety).
How to help when they are stuck?
Often, students copy because they stare at a blank page, feel overwhelmed, and do not know how to begin. They might struggle to decode maths word problems or forget a fundamental rule from the previous year.
When they hit a wall, they need someone to explain the reasoning, not just give the answer. If you cannot help them yourself, Fermi's AI tutor can help. Most learning tools answer questions. Fermi teaches — it holds a line of reasoning across a whole session, notices where a student is stuck, and decides whether to explain, ask, or show.
By taking away the fear of falling behind and giving them a reliable way to get unstuck, you can help your child build the confidence to tackle their own work. It changes homework from a stressful chore into a manageable part of their learning routine.
