The Sigma Mastery Engine is in development and not yet available to students — here’s a preview of what’s coming.
The Sigma Mastery Engine
Prove it. Don't just review it.
Most tutoring reviews a mistake once and moves on. Inside the Sigma student portal, the Mastery Engine will keep working on every lost mark until your child can prove — again and again, on fresh questions — that it's truly fixed.
The Mastery Engine will support our expert teaching — never replace it.
- 01
Capture
Every lost mark — in class, homework, quizzes or practice exams — will go into your child's personal Error Book, tied to the exact syllabus idea behind it. The same idea missed twice will be one tracked weakness, not two.
- 02
Fix
They'll re-attempt fresh questions built around the exact one they got wrong — not random questions on the topic. Three right in a row, and it will count as fixed.
- 03
Prove
Days later, the idea will quietly come back in normal practice. Get it right again across separate sessions and it will be marked mastered — and cleared from the Error Book.
- 04
Retain
Even after mastery, the engine will re-check at widening intervals. If your child slips, the gap will reopen automatically — so it's never truly lost.
Why the loop matters: “I understand it now” is never enough on its own. A mistake will only be cleared when your child has proven — repeatedly, on fresh questions, over time — that they can get it right.
Why it matters
What families get out of it.
Nothing falls through the cracks
Every mistake will be tracked all the way to mastery — not glanced at once and forgotten.
Practice that targets their weak points
Work will be built around your child's actual errors, not generic worksheets.
Confidence that's earned
Mastery will be demonstrated on fresh questions — never assumed from "I get it now".
Progress you can actually see
Students and parents will watch gaps close, concept by concept.
Beyond the engine
The student portal will also include:
- Full recordings of every lesson
- Daily quiz & leaderboard
- Practice & mock exams with instant feedback
- Weekly study planner & spaced revision
- An AI study companion for on-demand help
- Parent progress insight, incl. predicted HSC band
Included with every Sigma enrolment — launching soon for HSC 2027 students.
Ready to sum up your HSC sciences?
Classes fill before term starts. Secure a position in Physics or Chemistry at our Parramatta campus — or join us online.