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MarsLadder
Tutoring · Knowledge Map

A grade is a guess.
We take a measurement.

Every answer places the student on the same scale as the questions. The estimate tightens on each knowledge point, while the map shows what that skill depends on and what it unlocks.

Get started How the measurement works
Ability measurement · Negative indices
placed · 6 / 6
Ability pinpointed on Negative indices · high confidence
The structured map

A real structure — not a list of topics.

The map holds two kinds of wiring: a hierarchy that runs down five layers, and weighted prerequisites that run across them. Together they let a diagnosis trace a gap to its true cause.

The hierarchy

Five layers, 2,280 points.

Every point sits on an ordered path — drill from Area of Study down to a single subcontent leaf. This is the real Knowledge Mastery view inside the product.

2,280
knowledge points
5
layers deep
6
national curricula
MarsLadder Knowledge Mastery view inside the product
AOS
Number & Algebra
TOPIC
Arithmetic operations
SUBTOPIC
Multiplication
CONTENT
Multi-digit multiplication
SUBCONTENT · LEAF
Place-value regrouping
The prerequisites

What each skill depends on.

Across MarsLadder, every point is wired to what it depends on and what it unlocks — so a diagnosis can trace either way: back to a hidden gap, or forward to what a win opens up.

What each skill depends on
Subtract✗Divisionstalled✓MultiplysolidAdditionthe gap✓Countingmastered
PREREQUISITE · TRACE
A stall on Division traces back — past Multiplication (solid) — to the real gap: Addition.
POSTREQUISITE · UNLOCKS
Addition is mastered — and it unlocks Subtraction, Multiplication and Division in turn.
The measurement engine

It places you by which questions you get right.

Not how many — one hard question outweighs ten easy ones.

one answer· sharpens ability
correct
Your ability
the student
0.62± 0.08
easierharder
placed with confidence
ONE SCALE
ability meets difficulty
many answers· calibrate question difficulty
Question difficulty
the question bank
0.66± 0.06
easierharder
from 3,820 answers
The better we know each question, the more precisely we can place you.
The same measurement theory as
NAPLANSATTOEFL
Prove it moved

Nobody writes this report — it writes itself.

It is the learning profile: every number is recomputed from each answer by the same validated measurement engine that places each point — traceable, not a rough accuracy average.

MarsLadder Learning Report — students surfaced by who needs attention first
MarsLadder

Measurement you can trust.
A real gap you can fix.

One knowledge map is what makes every measurement, every placement and every fix specific to the student in front of you.

Privacy-consciousCurriculum-alignedTeachers in the loop