2,462 marked attempts.
208 students. One department.
The highest-volume school deployment in SudoStudy's history — and almost all of it is Economics.
2,462
Total Attempts
87%
Completion Rate
208
Students
350+
Hours Saved
of teacher marking
At a Glance
| School | Kolej Tuanku Ja'afar (KTJ) |
| Type | British-curriculum boarding school — one of Malaysia's most prestigious |
| Location | Mantin, Negeri Sembilan, Malaysia |
| Lead Subject | Economics |
| Lead Teacher | Took Shir Li — Deputy Head of Sixth Form |
| Teachers on Platform | 3 |
| On SudoStudy Since | November 2023 |
| Status | Returning customer — re-engaged May 2026 |
Why KTJ Matters More Than Any Other Reference
Most school case studies are about one teacher with a tight cohort, or a science department running 100–200 students through a couple of subjects. KTJ is in a different league: more attempts than any other school on the platform, more students reached than any other deployment, and two full academic years of sustained use.
This is what happens when one department head decides a platform isn't an experiment — it is how the subject is taught.
The thing competitors can't match: it's an Economics deployment
Almost every AI-grading platform leads with Maths and Physics — numerical answers are the easy case. KTJ proves the workflow holds in the subject most platforms quietly avoid: A-Level Economics, where the marking is semantic, the rubrics are deep, and the volume is enormous.
Subject Breakdown
| Subject | Quizzes | Attempts | Completion |
|---|---|---|---|
| Economics | 453 | 2,412 | 87% |
| Accounting | 35 | 42 | — |
| Sciences (Bio/Chem/Phys) | 6 | — | — |
98% of KTJ's deployment is Economics — hundreds of essay-style mark schemes, tens of thousands of marking points.
The Engagement Timeline
Took Shir Li signed up in November 2023 and within months had built a department workflow around the platform. The engagement pattern follows the exam cycle exactly — peaks in mock and exam windows, sustained activity throughout each term.
Monthly Engagement
| Period | Attempts | Students | Context |
|---|---|---|---|
| Jan 2024 | 280 | 80 | First major exam-prep push |
| Mar 2024 | 119 | 36 | Spring revision |
| Sep–Oct 2024 | 181 | 60+ | New academic year |
| Feb 2025 | 146 | 45 | Pre-mock build-up |
| Mar 2025 | 308 | 47 | Mock season peak |
| Sep 2025 | 232 | 55 | New cohort starts |
| Oct 2025 | 318 | 52 | All-time monthly high |
Attempts Over Time
Teacher Time Returned
350–425 hours
of A-Level Economics marking absorbed
More than 10 full working weeks — returned to the department
They came back.
After a pause in early 2026, KTJ re-engaged with SudoStudy in May 2026. Returning customers are the cleanest signal in B2B: a school that walked away and chose to come back has answered the question “is this worth paying for again?” with their own decision — not a sales pitch.
What KTJ Proves
Largest Deployment Ever
2,462 graded attempts and 208 students — the biggest single-school deployment in SudoStudy history.
Essay Subjects Work
98% Economics. The proof that AI marking works on semantic, essay-style rubrics — not just numerical subjects.
Returning Customer
Took a pause, made the decision on their own terms, and chose to come back. The hardest possible test of product-market fit.
Ready to transform your department's assessment?
If KTJ can run 2,462 marked Economics attempts with one lead teacher, imagine what SudoStudy can do for your school.