If your child’s maths homework looks nothing like the maths you learned, you’re not imagining it, and you’re far from alone. Many schools now teach several methods per operation and expect children to explain their thinking. You don’t need to master all of it tonight. You need ten minutes to understand this worksheet’s method — and a way to help without teaching a method that clashes with school.
Why the maths looks different now
Over the past decade or two, many school systems have shifted how they teach maths. In the US this is often associated with the Common Core standards; the UK, Australia and others went through similar changes under different names. The common thread is an emphasis on understanding why a method works before learning the fastest shortcut.
In practice, that means your child might:
- break numbers into parts (“partitioning”) before adding or multiplying,
- draw number lines, arrays or area models instead of stacking digits,
- use the grid or box method for multiplication before the column method,
- be asked to “explain your strategy” or solve the same problem two ways,
- use terms such as number bonds, decomposing, chunking or bar models.
The older methods you know aren’t wrong — most schools still teach them, often later. The concern is order: children who learn a shortcut before the idea can apply it without understanding, and get stuck when the problem changes shape.
First, don’t teach your way (yet)
Your instinct will be to show the method you know. Resist it for now. If the class is building towards column subtraction through number lines, jumping straight to “borrow one from the tens” can confuse your child and contradict their teacher. Two competing methods tend to be worse than either one alone.
Instead, your goal tonight is to understand their method well enough to ask good questions about it.
The ten-minute catch-up routine
- Ask your child to show you (2 minutes). “Show me how your teacher did one like this.” Even a muddled explanation tells you the method’s name and shape. And explaining it is good practice for them.
- Find a worked example (2 minutes). Look in the exercise book, the textbook, the worksheet’s top section or the school’s website. Many schools publish calculation policies or parent guides that show each method step by step.
- Get a private briefing (3 minutes). If you’re still lost, ask an AI assistant to explain the method to you — not to solve your child’s homework. Here’s what to ask for.
- Try one yourself (3 minutes). Do a problem with different numbers using their method. Now you can coach it.
What to ask for: the name of the method on the worksheet, a step-by-step explanation using a different example, why schools teach it, and how it connects to the method you learned. Ask it to talk to you as a rusty adult and not to solve your child’s problems.
A quick decoder for common “new” methods
| You might see | What it means | Example |
|---|---|---|
| Partitioning / decomposing | Splitting a number into parts that are easier to work with | 47 + 25 → 40 + 20 = 60, 7 + 5 = 12, 60 + 12 = 72 |
| Number line (jumps) | Counting on or back in friendly jumps | 83 − 38: jump from 38 to 40 (2), to 80 (40), to 83 (3) → 45 |
| Number bonds | Pairs of numbers that make a total | Bonds to 10: 7 + 3, 6 + 4… |
| Grid / box / area method | Multiplying each part separately in a grid, then adding | 23 × 14 → 20×10, 20×4, 3×10, 3×4 → 200 + 80 + 30 + 12 = 322 |
| Arrays | Rows and columns of dots showing multiplication | 3 rows of 4 dots = 3 × 4 = 12 |
| Chunking (division) | Taking away friendly multiples of the divisor | 96 ÷ 4: take 80 (20 lots), take 16 (4 lots) → 24 |
| Bar model | Drawing bars to represent quantities in a word problem | A bar split into parts to show “Sam has 3 times as many as Ali” |
Names vary between countries and schools; the ideas are the same.
How to help once you understand the method
Now you can coach rather than tell. Useful moves:
- Ask them to narrate. “Talk me through what you’re doing.” Errors often appear mid-sentence.
- Ask “why that step?” If they can’t say why, the understanding is shaky even if the answer’s right.
- Check with estimation. “Roughly what should the answer be?” A child who expects about 300 notices when they get 3,200.
- Connect it to what you know — once they’re secure. “Look, your grid method and my old way give the same answer. Can you see why?” This deepens understanding once the class method is solid.
If they’re stuck rather than wrong, use our support ladder: question before hint, hint before example.
Topics that confuse parents most
Some topics account for a large share of kitchen-table confusion. We have dedicated guides for the biggest ones:
- Fractions — equivalent fractions, adding unlike fractions, mixed numbers: How to explain fractions to a child.
- Word problems — turning words into a calculation: How to help with maths word problems.
- Early algebra — “solve for x” for the first time: How to explain algebra to a child.
The AI Tutor Vault opens with a whole chapter for this exact moment — prompts that brief you on the topic, find your child’s mistake and give you the one rule that unlocks it. See the AI Tutor Vault.
What not to say
- “This new maths is ridiculous.” Your child has to use it tomorrow. Criticising it undermines their teacher and their confidence.
- “I was never good at maths either.” Kind, but it can signal that being bad at maths is inherited and fixed. Try “I learned this a different way — let’s figure out yours.”
- “Just do it my way, it’s quicker.” Quicker for you; possibly marked wrong if the task asks for a specific method.
When to contact the teacher
Get in touch if your child regularly can’t start the homework even with help, if homework takes much longer than the school intends, or if you can’t find any explanation of the method. A short, friendly note works best: what you’ve noticed, and a request for how the method is taught so you can support it. Teachers generally want to know.
Frequently asked questions
Why can’t my child just use the old method?
Sometimes they can — check with the teacher. But when a task asks for a particular strategy, it’s usually assessing understanding of that strategy, so the old method may not earn the marks.
What is Common Core math?
Common Core is a set of US learning standards adopted by many states. They describe what students should learn at each grade, with emphasis on understanding and explaining. Teaching methods vary between schools; “Common Core math” is often used loosely to mean these newer, visual strategies.
Is it OK to show my child my method?
Once they’re secure with the class method, comparing the two can deepen understanding. Before that, it often confuses.
Can AI explain my child’s maths homework to me?
Yes, and it’s one of the best uses of AI for parents. Give it a worked example from the class so it explains the right method, and double-check any calculations, as AI can make arithmetic mistakes.
Next steps
Tonight: ask your child to show you one example, find the worked example in their book, and if needed run the method briefing prompt for yourself. Then coach with questions. If this happens often, bookmark our prompts for parents.