Practice
How the work is made.
Nine positions that decide what gets built and what gets refused. None of them is a preference — each one came out of a specific problem, and each is traceable to a decision in something that shipped.
The ground everything sits on
Children mostly do not fail at content. They fail at the conditions around it.
Three conditions have to be true before a child learns anything. They are the reason a household can own a great deal of perfectly good material and still lose a Tuesday evening to it — the failure happens before the material is opened.
- 01
A child can start without an adult.
If beginning requires someone to sit down first, most of the material will never be opened.
- 02
A child can be wrong at no cost.
A learner who has found that a wrong answer costs something stops offering answers.
- 03
The adult knows what to say next.
The one almost nothing is designed for, and the one that decides whether the other two survive a real evening.
Published in full as The Learning Conditions.
Design positions
- 01
The destination decides the route.
A unit is built backward from the thing a learner should be able to do at the end, and every lesson before it has to earn its place by producing something that final task consumes. Stated that way it sounds obvious. Built that way it is structurally awkward — it means committing to the ending before you know whether the middle can supply it, and rewriting the lessons that turn out not to.
The Museum is the plan, not the finale — its exhibits are curated from artefacts made in Lessons 2, 3 and 4, 16, 17, 23 and 30, so by the time it is built its contents already exist.
Heritage and Identity
- 02
The adult in the room is a user, not a delivery mechanism.
Most learning material is designed for the learner and handed to whoever happens to be supervising. That adult — a parent at a kitchen table, a teacher covering a class at short notice, a colleague running a session — is the person who decides whether any of it happens. They need to know why, not just what, because an adult who understands the idea can answer the next question and an adult following a script cannot.
The grown-ups page explains why, not what — what the mathematics is for and what children usually find hard about it, rather than instructions for running an activity.
Math at HomeScripted to the minute, not suggested — so preparation is reading rather than planning, and a teacher covering at short notice can teach rather than fill the time.
Heritage and IdentityThe rationale sits on the page — each tool carries a short note saying what the idea is and what children typically get wrong about it.
Classroom Tools
- 03
Assessment should report something useful, not rank someone.
An instrument exists to route the next twenty minutes. A percentage does not do that — a parent who learns their child scored 60% still does not know what to do on Tuesday. A score also invites a retry, and a retry turns a diagnostic into a rehearsal, after which the second result tells you nothing. Every one of these decisions is defensible on formative-assessment grounds and every one is commercially the harder choice, because stars and streaks are what sells a learning product.
The Check has no score and exactly one attempt — every item skill-tagged, and the report written for the adult, naming what to do next.
Math at HomeExemplars at three levels for every assessment — work at three levels rather than a description of three levels, because a rubric tells a teacher what to look for and an exemplar shows them.
Grade 3 ScienceA collected-not-graded list — an explicit table of what to look at and deliberately not mark, because marking load only falls if something is written down.
Grade 3 Science
- 04
Sequence by progress, not by the calendar.
School calendars do not hold. A snow day, an assembly or a week lost to something else moves everything, and once dates slip an assessment plan tends to be abandoned rather than rescheduled. Anchoring release to a learner finishing the preceding piece means a class that loses a week loses a week, and the plan stays intact behind it.
Assessment triggers on progress, not on a date — each of the 16 assessments is released by finishing the lesson before it.
Grade 3 Science
- 05
The real conditions of use are the design, not a fallback.
Home printers run out of colour. School networks block domains and managed devices refuse to open local files. A tired child at the end of a school day has about three minutes. These are not degraded cases to accommodate afterwards — they are the actual conditions, and designing to them first produces a better artefact than designing for ideal conditions and then compromising.
Black and white is the design, not the fallback — nothing carries meaning through colour, so a greyscale print is the complete resource. It is also the correct accessibility position.
Classroom ToolsOffline first, because school networks are the constraint — a folder of pages that opens from a file, a memory stick or the hosted copy, with nothing to install.
Heritage and IdentityThree minutes is the design target — the honest unit of home practice is one sitting with a tired child, and an abandoned game is a small failure the child remembers.
Math at Home
- 06
A claim you have not checked is a claim you should not make.
Paraphrase is where coverage quietly becomes generous. A page that promises whole numbers and delivers decimals is not a typo, it is a broken promise nobody re-read. So expectations are quoted rather than summarised, gaps are named rather than stretched over, and what a page says about itself is verified against what it actually contains — including the descriptive copy around it, which is where the most expensive errors turn out to live.
The curriculum page names its own gaps — two expectations declared out of scope, with a note on where they would fit. A coverage claim that has never had a gap has never been audited.
Grade 3 ScienceThe expectation is quoted, not paraphrased — all 17 reproduced in the Ministry’s own wording, which removes the room to be generous.
Heritage and IdentityPages are held to their own promises — a check reads what a page says about itself and verifies the page keeps it.
Curriculum QA Suite
- 07
Verify the artefact, not the intention.
Material can be correct and the finished page still wrong — something lost between the two — and only the page shows it. Checking the source verifies what was meant; checking the output verifies what was sold. And where content is produced at volume, sampling is not a strategy: a defect appearing in one round in five hundred will certainly reach a learner and will never reach a reviewer.
Check the finished product, not the material behind it — 61 automated checks run against the pages a child is actually served, and a unit that fails one does not ship.
Curriculum QA SuiteVolume instead of inspection — over a hundred thousand rounds per activity, because sampling cannot find what appears once in five hundred.
Curriculum QA Suite
- 08
Refusing the second idea is most of the work.
Every one of the single-page tools could have been three pages. The framework could have had a fourth condition. The value is in what was left out, and subtraction is harder to justify than addition because nothing visible is gained by it. The test is whether the person holding the thing can absorb it in the moment they need it — not whether it would fit.
Three conditions, and a refusal to add a fourth — every candidate was either a restatement of one of the three or a strategy rather than a condition.
The Learning ConditionsThe fraction wall is drawn to one whole — the single constraint that makes equivalence visible without a sentence of explanation.
Classroom Tools
- 09
The strongest privacy position is having nothing to lose.
Every design that begins with "create an account" ends with a table of people. Removing identity from a system removes the breach, the data request, the retention policy and the compliance question in one move. It is also the honest form of a privacy claim: not that data is well protected, but that it was never taken.
No accounts, no passwords, no email capture, and no per-buyer record stored anywhere.
Hosted Delivery PlatformAnalytics from logs, not from the page — no script runs in a teacher’s browser to report on them.
Hosted Delivery Platform
Every position above is argued at length in the case study it came from, alongside what it cost and what it has not been measured against.