Jun
Bachelor of Medical Science / Doctor of Medicine (MD), Monash University · Melbourne High School
- ATAR · Class of 2025
- 99.10
- Mathematical Methods
- 43 raw
- Hours tutored
- 250+
Built for locking in what matters most
Built for focus — built for real understanding
VCE Mathematics, remastered: interactive booklets, animated concepts and unlimited questions — Methods and Specialist taught the way they should have been.
Keep scrolling — the derivative draws itself.
Open the full demo →why lockedin
The first with truly interactive booklets
Animations you scrub, notes you interact with, worked solutions to every homework question — and unlimited questions answered 24/7 on Discord.
Parents stay in the loop with consultations and private progress calls.
Backed by real credentials
Our tutors’ own scores and awards — verifiable, not cherry-picked student results.
- Highest tutor ATAR
- 99.75
- Highest tutor ATAR
- Methods — achieved twice
- 43 raw
- Methods — achieved twice
- Specialist Mathematics
- 41 raw
- Specialist Mathematics
- Hours tutored
- 450+
- Hours tutored
- AMC Medallist
- AMC Prize ×2
- 1st of 60+ teams — MAV ×3
- 01differentiate
- 02transformation
- 03lock in
x = 1.20
f(x) = 0.93
f′(x) = 0.36
Built for locking in what matters most
Built for focus — built for real understanding
VCE Mathematics, remastered: interactive booklets, animated concepts and unlimited questions — Methods and Specialist taught the way they should have been.
- Highest tutor ATAR
- 99.75
- Highest tutor ATAR
- Methods — achieved twice
- 43 raw
- Methods — achieved twice
- Specialist Mathematics
- 41 raw
- Specialist Mathematics
- Hours tutored
- 450+
- Hours tutored
- AMC Medallist
- AMC Prize ×2
- 1st of 60+ teams — MAV ×3
our story
Built by students who cracked VCE maths the hard way
We sat the same exams, fell into the same VCAA traps, and spent whole evenings stuck on single questions with nobody to ask. LockedIn exists so you don't have to.
Instead of a teacher and a stack of past papers, we built a system: custom interactive resources around the exact concepts you're learning, worked solutions to every question, and a structure tailored to optimised exam results.
With small group classes and unlimited support between lessons, you're never behind, never stuck and never guessing — and parents always know exactly where their child stands.
a real vcaa separator · 2019
The question 95% of the state scored zero on
Every exam has one question that decides the top study scores. This is the real one from the 2019 Methods Exam 2 — recreated from the paper, with the statewide marks from the official examination report. Then watch how fast it falls when you can see it.
2019 · VCE Mathematical Methods · Written Examination 2
Section B · Question 5
Question 5f.
2 marks
Let f : R → R, f (x) = 1 − x3. The tangent to the graph of f at x = a, where 0 < a < 1, intersects the graph of f again at P and intersects the horizontal axis at Q. The shaded regions are bounded by the graph of f, its tangent at x = a and the horizontal axis.
Consider the regions bounded by the graph of f−1, the tangent to the graph of f−1 at x = b, where 0 < b < 1, and the vertical axis.
f. Find the value of b for which the total area of these regions is a minimum.
From the examination report
| Marks | 0 | 1 | 2 | Average |
|---|---|---|---|---|
| % | 95 | 1 | 4 | 0.1 |
“This question was not answered well. Many students attempted the second method but were not successful.”
© VCAA — 2019 Mathematical Methods 2 examination and examination report, Question 5f.
the solution, step by step
step 1 / 7
a = 0.540
A(a) = 0.7484
drag the gold slider in steps 3–4 · animations are exact, not sketches
The last two marks of the 2019 exam
One cubic. Question 5 walks you up a ladder — tangent, intercepts, areas — and then part f. pulls the floor away: 95% of Victoria scored zero on it.
Here's the whole question, taught the way a LockedIn booklet teaches it — one move at a time. Click through.
the system
An education you can interact with
booklets
Animated, interactive note booklets
We're the first tutoring company to integrate animations and interactive note booklets — concepts you can see move, not just read about. The separator walkthrough above is a page from one: that's how everything is taught.
solutions
Interactive homework solutions
Every question comes with a fully worked, interactive solution. Understand the method, not just the answer — no more losing an evening to one question.
recordings
Every lesson recorded and kept
Miss a class or want to revise a tricky idea? Every session is recorded and saved to your own Google Drive, so nothing is ever gone — rewatch any explanation, as many times as you need, right up to the exam.
exam craft
Exam strategy and past-paper run-throughs
We don't just teach content — we teach the exam. Detailed run-throughs of real past papers, the VCAA traps and marking conventions that quietly cost marks, and timing and technique drilled under exam conditions so the real thing feels familiar.
workshops
Signature holiday workshops
Between terms, our intensive Signature Math Holiday Workshops consolidate the hardest topics and get you ahead of the next unit — so you start each term already in front instead of catching up.
support
Unlimited questions and real check-ins
Ask anything, any time, through our student Discord — a worked answer, not just a hint. Students get private diagnostic calls on their progress, and parents get regular consultations and progress calls, so nothing slips between sessions.
your tutors
Taught by people who've actually done it
Not a faceless agency — two Melbourne High School graduates who sat these exact exams and beat them.
Yufeng
Bachelor of Commerce — Actuarial Science & Finance, The University of Melbourne · Melbourne High School
- ATAR
- 99.75
- Mathematical Methods
- 43 raw
- Specialist Mathematics
- 41 raw
- Hours tutored
- 200+
- AMC Medallist
- AMC Prize ×2
- AMC Best in School ×2
- 1st of 60+ teams — MAV Maths Competition (2022, 2023, 2024)
Your first class is free
— see the system for yourself
No commitment, no payment details — just one class to experience interactive VCE maths done properly.
Book a Free Trial ClassClasses capped at 5 — seats fill each term