1 credit
Marked and explained
We marked every answer, and where something went wrong we named the cause.
How it works
A photo of completed maths homework becomes a clear explanation and a useful next step. Built for parents, ready to work through together.
Understand the homework. Know how to help.
The whole page, in one go
You photograph work your child has already done, and we read every answer on it. There is nothing to type in, no question to choose, and no worked solution to sit through. What you send is a page of your child's own handwriting, and what we mark is that page.
The report is written for you
You manage the account. Read the explanation yourself or sit with your child and work through the report, worked steps and practice together.
We tell you when we cannot mark it
We say when we cannot mark a page, we give you the reason, and that page costs nothing. We would rather say nothing than pick one cause and get it wrong.
When a read fails, and what fixes it
Most failed reads are the photograph rather than the page. A picture that is soft, or cropped, or that has already been squeezed by another app on the way here, does not hold enough detail for a model to read handwriting off it. Three things fix nearly all of them.
- One page per photo, edge to edge, with the whole page in the frame.
- Move the phone closer rather than pinching to zoom. Pinching crops the picture instead of magnifying it.
- Take it here rather than sending one on from a messaging app, because a message has already thrown detail away.
1. You take the photo
Take a photo in the app or choose one from your photos. The app can measure what you sent. Before you spend anything we say whether there is enough detail in it, and if there is not you can retake it there and then.
2. We read it
The photo reaches our server and a model reads the handwriting for us. We work out the topic, we read the printed questions, and we check every answer we can. More complex pages can take longer, and reading carries on if you close the app.
Where an answer is wrong, we try to name the mistake that produced it, and we only name one when a single mistake gives that answer exactly. Where more than one mistake would give it, we say so instead of guessing.
What the evidence looks like
wrote1.000answer0.6
Rounded to a whole number instead of to one significant figure. That mistake gives this answer exactly, which is why we are prepared to name it.
KrightPwrong, cause namedGwrong, cause not settledVnot readRright
A tick is right, a cross is wrong with the cause named, a dash is wrong with no cause found, and a dotted chip is a question we could not read. Never a letter, never a grade.
3. You pick one thing
The report names the mistake that repeats, shows what was written next to what the question wanted, and gives one thing to do this week. One thing, not a list.
Follow the topic to relevant lessons, worksheets and practice. Opening practice in MathsHub costs no credit; external publishers set their own access terms. Sources and licensing details explain what we show here and what opens on a publisher’s site.
The five ways a page can turn out
All five look the same on the page, because telling you we could not mark something matters as much as telling you what we found. Three of them cost nothing: only a page we mark costs a credit.
Credits come in packs, from £3.99 for 5 pages up to £29.99 for 60, or £6.99 a month for 15 pages. Prices include VAT. What it costs, in full
1 credit
Marked, one cause not found
We marked every answer. For one of them we can say the answer is wrong, but not why.
free
Topic found, not marked
We know what the page is about, but we cannot mark this kind of question yet.
free
No topic found
The photograph is clear, and we still cannot work out the topic of this page. This page is free.
free
Nothing marked, photo too soft
The photograph is ours to get right, so nothing needs writing out again.
When we ask you to confirm
Handwriting is hard to read, and sometimes we are not certain what a digit is. Rather than mark a page on a guess, we show you the few answers we are unsure about and you type what is actually on the paper.
It takes under a minute. A page is only charged once, whether you confirm it or not, and what you type replaces our reading of it.
One page is enough to start
An unmarked page is free, so the first one costs you nothing if we cannot read it.