A maths diagnostic for primary school teachers
What they know · what they need next · a school-report comment · a parent-friendly summary.
All multiple choice — no marking. The tool does the analysis for you.
You end up with a heat-map of percentages and a vague feeling that certain topics "need more work." The real picture — what each student is actually thinking — is left to you to infer from a stack of answer sheets.
The diagnostic does that thinking-work for you. Every wrong answer on the screener is engineered to point at a specific misconception. A few examples are below — look at the wrong-answer notes under each.
In a well-designed multiple-choice question, each wrong answer is a window into a specific way of thinking. There are no random distractors. If a student picks B instead of A, you know exactly which mental model produced B — and which lesson it needs.
1/2 + 1/3 = ?
Three distinct misconceptions, three different next lessons. The report tells you which of your students sits in each group.
Every question on the screener is engineered the same way. The diagnostic engine reads each student's pattern of answers and tells you which misconception each child is currently working from — and which next lesson it points to.
There's no marking, no question-by-question analysis, no evening spent at the kitchen table working through a pile of student work. You print the paper screener, sit each student down with it, click the option each one chose, and hit generate. The diagnostic engine does the rest.
A whole class — diagnosed, prioritised, with concrete teaching plans — without sitting down to mark anything. The work that usually drains your weekend is what the tool is built to do for you.
A complete diagnostic workflow — paper, screen, and report — that runs on any laptop, online or offline.
24 questions across the eight MCQ-able Foundation Number objectives. Untimed and administered one-on-one.
A single HTML file you open in any browser. Add your students, click the option each one chose, hit generate. No data leaves your computer.
Class-summary grid, scope-and-sequence heat-map, top-three class trends, curriculum-coverage view, and one tab per student with a parent-ready summary and a paste-ready school report comment.
For every top misconception, the report includes a step-by-step activity with specific numbers, exact teaching language, duration, materials, and frequency. Designed to be picked up and used on Monday.
Generated from a class of 24 fake students, using the Foundation version of the tool. The same report style runs at every year level. Click between the tabs to see the class-summary grid, the scope-and-sequence heat-map, the class trends with teaching plans, and one student's individual tab.
Class summary — student-by-skill grid, with concrete examples and curriculum codes for each column. Each cell is colour-coded by band.
Three more questions — one each from Year 1, Year 3, and Year 5 — showing the same misconception-encoded structure at very different ages.
The diagnostic tells you why a Year 1 child wrote 31 for thirteen.
The diagnostic catches kids who read keywords rather than structure.
Distinguishes fraction-as-quantity confusion from forgot-to-scale.
Student names and responses are not stored anywhere. The diagnostic runs entirely in your browser, on your laptop, on your desk.
Schools are under more pressure than ever about where student data lives. Most other assessment tools ask you to upload names, responses, and reports to a third-party cloud. This one doesn't. You enter the responses, click generate, an Excel file appears in your Downloads folder, and the tool forgets everything. The privacy promise is in the architecture — not in a policy document.
Foundation through Year 6, government / Catholic / independent. Sit each student down with the screener, enter the responses, walk away with a class plan for the next fortnight.
Learning support, EAL/D, special ed. The misconception-encoded distractors are precisely the diagnostic signal you've been asking general assessments to produce — and they don't.
If you're teaching one child or a small group, the homeschool mode skips the whole-class trends and focuses on individual reports — strengths, next steps, and home-friendly activities.
The Foundation (Prep) release is the first stage. Year 1 through Year 6 follow it, year level by year level, as each is written, reviewed, and trialled with classroom teachers. Secondary year levels sit beyond that on the longer-term roadmap.
Joining the launch list below means you'll hear from me when each year level is ready, and have an early-access opportunity to give feedback on how the tool works in your classroom.
No marketing churn. One email when it's ready, and the occasional update if there's something genuinely worth sharing — a new year level, a major report improvement, that kind of thing.
I'll only email you about the launch and significant updates.