A parent should set up and sit near a child using CoreMark Coach, the AI tutor for Cambridge Lower Secondary Stage 9, because Claude by Anthropic accounts must belong to adults. Sit beside your child for the first session, check Coach's working, watch for copying, and keep sessions to 20 to 30 minutes.
CoreMark makes CoreMark Coach, so read this guide with that in mind. Where we point to other companies' pages, we link them directly.
Most parents who worry about a child using an AI tutor are not really worried about the technology. They want to know whether their child is learning or just collecting answers. This guide covers what to do in the first session, how to check an answer quickly, and what to look for over the following weeks.
It is written for parents of 12 to 14 year olds using CoreMark Coach for Cambridge Lower Secondary Stage 9. Nothing here replaces watching your own child work, and the steps are a starting point you can adjust.
Before the first session
- 01Coach runs only in Claude, from a Claude account that belongs to an adult aged 18 or over.
- 02Memory and Code execution and file creation both need to be switched on in Settings.
- 03Coach is not free: one stage is ₹9,999 per academic year, as of 20 October 2026.
Why does the parent run the Claude account?
Coach runs inside Claude, the AI assistant made by Anthropic, and Anthropic's rules say the account must belong to an adult. According to Anthropic's help centre (checked 20 October 2026), "We require all users to be at least 18 years old to create and use a Claude account." That is why the parent signs up, creates the Coach project and keeps the chats in their own account.
Do not set up a Claude account for your child, and do not tell your child to create one. Anthropic's help centre also says it may ask users it thinks are under 18 to verify their age. The age rule is on Anthropic's minimum age page, and the wider age checks are on its age assurance page.
You can read how Anthropic handles data on its Privacy Center. Your child works in the chat you open, so you are sitting beside them when they use it.
What happens in the first session, minute by minute?
The first session sets the pattern for the rest, so plan on about 30 minutes. The steps below use only what Coach does by design, and they assume you have followed the CoreMark Coach setup.
- Sit beside your child, not across the room, with the chat open where you can both read it.
- Open the chat inside the Coach project and type "hi". Read Coach's greeting together. It introduces itself and asks the child to say "learn" and a topic, or "exam" and a topic.
- Let your child pick the topic. Coach teaches your child's own stage, so ask what they are studying this week in Maths, Science or Computing and let them name it.
- Watch the first learn loop. Coach opens with a map of the sub-concepts, teaches one at a time, draws a diagram first when it can, then gives an everyday example and the rule in exam wording.
- Watch the first teach-back. Coach asks your child to explain the idea in their own words. Let them try before you help. If the explanation is fuzzy, Coach re-teaches with a different example.
- Look at one apply question together and ask your child to read Coach's working out loud.
- At the end of the topic, Coach gives a three-question mini-check with no marks and suggests an exam on the topic, ideally next session. Write the topic on paper so you both know what to return to.
How do you check an answer in three minutes?
You do not need to check every answer. Pick one answer from the session and run the checklist below, which takes about three minutes.
- Ask Coach to show its working for that answer, one step at a time.
- Compare the final answer with the solutions in the matching PDF booster for the same topic, if you have one.
- Ask your child to state the rule behind the first step without looking at the screen.
- Check that the answer has the units or words the question asks for.
- After a practice paper, read the first wrong step Coach names and ask your child to fix that one step.
What are the signs a child is copying rather than thinking?
Copying usually shows up as answers that arrive too quickly, too neatly, or in Coach's exact words. Treat these signs as clues that start a conversation, not as proof. If your child is struggling in the subject itself, the guide to what works when a child is falling behind in Cambridge Maths covers the gap underneath.
| Sign | What it may mean | What to try |
|---|---|---|
| Instant, perfect answers with no working | The answer may come from somewhere else, or your child may be asking for results without the method | Ask for the first step on paper, then a photo of that written step, the kind of photo Coach asks for |
| Teach-back repeats Coach's sentences word for word | The sentence may be memorised without the idea behind it | Ask for the same idea with a different everyday example, such as a game or a football match |
| Refuses to attempt a question and asks for the answer | Stuck, tired, or hoping to skip the effort | Take a short break, then ask for one small step only, not the whole answer |
| Switches topic every time a question gets hard | Avoiding a gap that has not been closed yet | Name the topic they skipped and go back to it for one mini-check |
| Wants to skip questions in exam mode | Pressure or nerves about a timed paper | Remind them that Coach lets them flag a question to come back to, but they still have to attempt it; set your own timer together |
How long should a session last, and should you reuse a chat?
CoreMark's own guidance for Coach is twenty to thirty minutes most days, which beats one long session. Research on spacing is related, though it does not test session length directly. A 2006 synthesis of 317 experiments found that the best gap between study sessions grows with how long the material has to be remembered, although those studies used verbal recall tasks rather than maths or science.
Start a fresh chat for each session. Shorter chats are easier to look back through. Coach is designed to use Claude's memory to pick up between chats, but memory is a Claude feature, so it cannot be guaranteed to save everything. If Coach seems to have lost track, tell it where you left off.
What do you do when Coach says something that looks wrong?
Ask Coach to show its working before you decide anything. A confident tone does not mean an answer is right, and AI can make mistakes, so checking is part of using Coach.
Start with a calm message such as "Show me the working for that step." Coach re-derives each answer independently before it marks a student wrong. If its own question was flawed, it voids the question, replaces it and says so. If the working still looks wrong, compare the answer with a booster solution or your child's school textbook, and bring the question back in the next session. If you are not confident in the science yourself, the Checkpoint science help guide for non-expert parents explains what to look for.
Teach your child to say what they think is wrong and why. That habit is useful in the exam room as well as at the kitchen table.
What is Coach built not to do?
CoreMark Coach has guardrails written into every Coach file. It sticks to schoolwork for its own stage, teaches only its own stage and politely redirects requests for other stages. It uses a first name or nickname only and does not ask for personal details beyond what tutoring needs. The only photos it asks for are of your child's written work or drawings.
These are written instructions to an AI tutor, not a promise about every chat, so keep the screen visible and read what Coach writes now and then. Coach also only works inside Claude and is not free. As of 20 October 2026 each stage is ₹9,999 for an academic year, paid once with no subscription, and the file runs until the end of June. You can read more on the Coach page.
See how Coach works
CoreMark Coach is an AI tutor for Cambridge Lower Secondary Stage 9 that runs in Claude.
Frequently asked questions
No. Anthropic's help centre says it requires all users to be at least 18 years old to create and use a Claude account, checked 20 October 2026. CoreMark Coach therefore runs from the parent's account. The parent signs up, creates the project and stays involved, especially in the first few sessions. Do not tell your child to make an account of their own.
Not every time, but sit with them for the first session and the first few after it. Watch one teach-back, check one answer and read the mini-check together. Once you have seen how your child works through a topic, you can check in at the end of each session instead. Keep watching for answers that arrive too fast or in Coach's exact words.
Coach is designed to teach before it asks for answers. It uses a diagram where it can, an everyday example, and a teach-back in your child's own words. In exam mode it gives no hints on a mock paper and marks only after every question is submitted. A determined child can still look for shortcuts, so check the working rather than trusting the final line.
CoreMark's own guidance for Coach is twenty to thirty minutes most days. Short, regular sessions are consistent with the spacing research summarised in this guide, although that research used verbal recall tasks and did not test session length. Start a fresh chat each time, and stop when the topic's mini-check is done or your child is tired.
AI can make mistakes. Ask Coach to show its working, then compare the answer with a booster solution if you have one. Coach says so when it finds its own mistake, and in exam mode it voids a flawed question and replaces it. If you are still unsure after that, bring the question to your child's teacher.
No. CoreMark Coach works only in Claude, which is made by Anthropic. It does not run in ChatGPT, Gemini, Copilot or other AI apps. It needs internet access and a Claude account. It is not free: each stage costs ₹9,999 for an academic year, paid once with no subscription, as of 20 October 2026.
Sources & further reading
- Anthropic Help Centre, "Minimum age requirement" (checked 20 October 2026), support.claude.com
- Anthropic Help Centre, "Age assurance on Claude" (18 May 2026), support.claude.com
- Anthropic, Privacy Center, privacy.claude.com
- Dunlosky, Rawson, Marsh, Nathan and Willingham (2013), "Improving students' learning with effective learning techniques", Psychological Science in the Public Interest, psychologicalscience.org
- Cepeda, Pashler, Vul, Wixted and Rohrer (2006), "Distributed practice in verbal recall tasks: A review and quantitative synthesis", Psychological Bulletin, yorku.ca
Last updated 20 October 2026. Details about other companies and research were checked against their own pages on 20 October 2026; check current terms, features and prices before you decide.
CoreMark Coach is an independent product that runs in Claude, made by Anthropic. CoreMark is not affiliated with Anthropic or with Cambridge Assessment International Education. AI can make mistakes: check important answers, and supervise your child's use.