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Your child brings you a quadratic, a trigonometry identity or a ratio problem, and you realise you last did this thirty years ago. The good news: you do not need to remember the method to be useful. Often the most helpful thing a parent can do with maths homework is ask good questions and keep the mood calm, not produce the answer.
Does parents' help with maths homework always help?
Not automatically. A meta-analysis of 50 studies of parental involvement in middle school by Hill and Tyson (2009) found that parental involvement was positively linked with achievement, with one exception: parents' help with homework. The strongest link was with what the authors call academic socialization, which includes talking about the value of education, linking schoolwork to future plans and discussing learning strategies.
How you feel about maths matters too. In a large study of first and second graders, Maloney and colleagues (2015) found that when parents were more anxious about maths, their children learned significantly less maths over the school year and ended the year more maths-anxious themselves, but only when those parents reported helping with maths homework often. When maths-anxious parents helped less often, the link disappeared.
That does not mean stepping away entirely. In a separate study, Berkowitz and colleagues (2015) gave families a mobile app with short maths activities to do together at home. Children's maths skills improved within months, and the gains were largest in families where caregivers described themselves as anxious about maths. Taken together, the studies suggest that short, structured maths activities done together can help, while frequent homework help from an anxious parent can backfire.
Questions that help when you don't know the method
These questions work on almost any problem, from Class 6 fractions to Class 12 calculus. They follow the same idea as Polya's problem-solving steps: understand the problem before trying to solve it.
"Read the question to me. What is it asking you to find?"
"What information does it give you? Which of it do you think you need?"
"Have you seen a problem like this before? Where in your notes or textbook?"
"What did your teacher do in the example in class?"
"Can you try a simpler version, with easier numbers?"
"Where exactly did you get stuck? Show me the last line you're sure about."
"How could you check whether your answer makes sense?"
None of these require you to know the answer. They require your child to explain, and explaining is useful practice in itself.
A worked example
Suppose a Class 8 student is stuck on this: "A shopkeeper sells an item for ₹540 at a profit of 20%. What was the cost price?"
You: What is it asking for?
Child: The cost price.
You: What do you know?
Child: The selling price is 540 and the profit is 20%.
You: 20% of what?
Child: Of the cost price, I think. I was doing 20% of 540.
You: Try a simpler version. If the cost price were 100, what would the selling price be?
Child: 120. So 540 is 120% of the cost price. 540 divided by 1.2 is 450.
You: How could you check?
Child: 20% of 450 is 90, and 450 plus 90 is 540. It works.
The parent never did the calculation. The "simpler version" question did the work, and the "20% of what?" question exposed the real mistake.
What to do when you are both stuck
Name it calmly. "I don't remember this either. Let's find out how to find out." That shows the right attitude to not knowing.
Go to the source. Worked examples in the textbook (NCERT for CBSE students) and class notes come first.
Write the question down for the teacher. A specific question ("I don't understand why we divide by 1.2") is a good outcome of a homework session.
Look it up together. If the gap is an earlier concept, the Fermi Concept Library has a lesson on every concept in physics, chemistry, biology, mathematics and computing, each with its place in the map, so you can see what comes before it.
Stop before tempers rise. Twenty minutes of calm effort beats an hour of argument.
When to step back
As children get older, the useful role shifts from helper to coach. Hill and Tyson's finding that academic socialization matters most suggests spending your energy on conversations about how your child studies, what they find hard and where maths can lead, rather than checking each answer. Our posts on when to help with homework and when to step back and what to do when your child says they're bad at maths go further.
If your child wants to check their method after an honest attempt, the Fermi Problem Library has worked problems with a step-by-step solver that explains the reasoning rather than printing an answer, which fits neatly with the question "where exactly did you get stuck?"
