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The whole Atlas

Number & Arithmetic15
Counting18
Geometry & Visualization18
Logic & Deduction11
Patterns & Sequences7
Modeling & Word Problems10
Contest Craft12

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Code is MIT. Problems, skills, and explanations are CC BY-NC-SA 4.0. Practice never requires an account and nothing here is paywalled.

Independent project. Not affiliated with or endorsed by Math Kangaroo in USA, NFP.

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The Skill Atlas

Every skill Math Kangaroo tests, arranged so that each one sits below what it needs first. 91 skills across seven strands. Follow an arrow downward and you are following what a student can learn next.

The list view holds the same skills and is often the faster way in.

Strands

NUMNumber & Arithmetic
CNTCounting
GEOGeometry & Visualization
LOGLogic & Deduction
PATPatterns & Sequences
MODModeling & Word Problems
CFTContest Craft

Level

Any
1–2
3–4
5–6
7–8
9–10
11–12

Point value

Any
3 pt
4 pt
5 pt

CoverageHas problems

73 skills shownClear all filters

100%

Drag to pan, ⌘/Ctrl + scroll to zoom. Every node is also reachable with Tab.

Not started
Familiar
Proficient
Mastered
Ring weight: foundation, core, gateway (thinnest to thickest)
Solid line: prerequisite within a strand
Dashed line: prerequisite from another strand
Hollow centre: no problems written yet

CFT-08

Time triage: now, later, or guess

Contest Craft · Gateway · levels 5–6, 7–8, 9–10, 11–12

Seventy-five minutes across twenty-four or thirty questions means every problem gets a decision, not just an attempt: do it now, mark it and come back, or answer and move on. Made well, this is worth more points than any single piece of mathematics.

Needs first

CFT-07Spot the trick vs. decide to grind CFT-09Never leave a blank — there is no penalty

Opens up

CFT-12Managing the 5-point block

Open the skill page3 problems