eduKateSG · DEEP READING INDEX · QUIET ROUTING LAYER
Deep Reading Index
This is the quiet safety-net underneath the eduKateSG knowledge system. Normal reading should begin in a subject or system hub. This index exists so older, specialist and deep pages remain reachable even when they do not belong in the main navigation.
Start with Learning Hubs for school learning, Education for the larger learning system, World & Knowledge for wider knowledge systems, or the eduKateSG Ecosystem Atlas for the current owner map and decade-scale roadmap. Use this index when you deliberately want older, specialist, experimental or long-tail material beyond those normal routes.
Published Posts
Articles, guides, series entries, vocabulary work, tuition/local pages and current longform publishing.
-
Translate | ISO 3166 Country Codes, Subdivision Codes and UN M49 — Preserve Geographic and Statistical Identity Across Languages
-
Top Ways to Translate Correctly | Translate Telecom Network Manuals, OSS/BSS Alarms and Subscriber Information Without Changing Network Meaning
-
Translate Precisely | Diminutives, Augmentatives and Evaluative Morphology — Preserve Size, Intensity, Affection, Contempt and Social Stance
-
How People Translate Quickly | Raw Control Character QA: Catch NUL, ESC, Tabs and Hidden Control Codes Before They Break Localization Data
-
Translate | RFC Numbers, IANA Protocol Numbers and Media Types — Preserve Internet Standard and Protocol Identity Across Languages
-
Why Translate | Why Translation Matters in Schools and K–12 Education — Parent Communication, Reports, Meetings and Family Access
-
Translate | DICOM UIDs, StudyInstanceUID, SeriesInstanceUID and SOPInstanceUID — Preserve Medical Imaging Identity Across Languages
-
Translate Precisely | Suppletion and Defective Paradigms — Preserve Irregular Stems, Missing Forms and Periphrastic Repair Without Inventing Morphology
-
How People Translate Quickly | UTF-8 BOM QA: Catch Byte Order Marks That Break Localization Files, Parsers and Concatenated Text
-
Why Translate | Why Translation Matters in Nuclear Energy and Radiation Safety — Reactors, Radiation Protection, Procedures and Emergency Communication
-
Translate Precisely | Root-and-Pattern and Nonconcatenative Morphology — Preserve Consonantal Roots, Vowel Patterns, Templates and Word Families Across Languages
-
How People Translate Quickly | Invisible and Zero-Width Character QA: Catch Hidden Unicode Characters Without Breaking Legitimate Script Behavior
-
Why Translate | Why Translation Matters in Data Centers and Cloud Infrastructure — Servers, Cooling, Operations, Incident Response and Global Uptime
-
How to Improve Vocabulary | The Vocabulary Revision Pass — Edit Word Choice Without Overwriting Your Voice
-
How Mathematics Examination Works | Maths Exam Time Management, Pacing and Difficult Questions
-
Translate Precisely | Zero Copula and Verbless Clauses — Preserve Nominal, Adjectival and Locational Predication Without Inventing or Deleting Meaning
-
How Creative Writing Works | Writing Relationships, Trust and Change between Characters
-
How Juxtaposition Works | Contrast, Placement and Meaning in Creative Writing
-
How to Write a Composition | Theme, Meaning and Message Without Preaching a Moral
-
How English Examination Works | How to Analyse Language, Structure, Tone and Writer’s Effect
-
What is Primary 2 Vocabulary | Money, Saving, Spending, Needs, Wants and Financial Literacy Words for Grade 2
-
How to Improve Comprehension | Read Charts, Tables, Diagrams and Captions Together With Text
-
What is Primary 5 Vocabulary | Transfer Across English, Mathematics, Science and Primary 6
-
Top 200 Vocabulary Words to Learn When Visiting Malawi | Meanings, Examples and Travel English
-
What is SEC G3 English Vocabulary | Synonyms and Near-Synonyms — Shades of Meaning, Precision, Register and SEC K300 Writing
-
How to Improve Vocabulary | Word Form Control — Choose the Right Noun, Verb, Adjective or Adverb in Writing
-
What is Primary 5 Vocabulary | How Many Words Should a Grade 5 Student Know? Vocabulary Size, Coverage and Realistic Targets
-
Grade 4 Prepositions & Prepositional Phrases | 100 Fourth Grade Prepositions with Examples, Worksheets & Practice
-
What is Primary 5 Vocabulary | High-Utility Words, Tier 2 Vocabulary and What Grade 5 Students Should Learn First
-
How Creative Writing Works | Curiosity, Mystery, Surprise and the Questions That Keep Readers Reading
-
What is Creative Writing | 50 Creative Writing Tips That Actually Work — Rules, Myths and Better Decisions
-
How Mathematics Examination Works | Mathematical Modelling, Assumptions and Real-World Questions
-
How Onomatopoeia Works | Sound Words, Sound Symbolism and Vivid Writing
-
How Repetition Works | Anaphora, Refrains, Parallelism, Rhythm and Emphasis in Writing
-
How to Write a Composition | Pacing, Scene and Summary — When to Slow Down and When to Compress
-
How English Examination Works | Summary, Paraphrase, Synthesis and Concise Answer Writing
-
Translate | ISRC, ISWC, ISAN and EIDR IDs — Preserve Music and Audiovisual Work Identity Across Languages
-
How School Works | School Attendance Explained — Why Showing Up, Being on Time and Staying Connected Matter
-
Translate | NCBI Taxonomy IDs, GBIF Taxon Keys and Scientific Names — Preserve Species and Taxon Identity Across Languages
-
Translate | InChI, InChIKey, SMILES and PubChem CID — Preserve Chemical Structure Identity Across Languages
-
Translate | CVE IDs, CWE Weaknesses and CVSS Vectors — Preserve Vulnerability Identity and Severity Across Languages
-
How to Improve Vocabulary | Lexical Decision Points — Find the Words That Change Meaning
-
How to begin Creative Writing | How to Write Setting and Atmosphere: Place, Sensory Detail, Mood and Description for Beginners
-
What is Creative Writing | How to Improve Creative Writing: A Practical System for Becoming a Better Writer
-
How Creative Writing Works | Humour, Comic Timing and Why Funny Writing Needs Consequences
-
How to Write a Composition | Conflict, Stakes and Tension Without Melodrama
-
How to Improve Comprehension | Understand Nonfiction Arguments, Claims, Evidence and Explanations
-
How to Improve Vocabulary | The Word-Choice Decision System — Choose the Right Word, Not the Fanciest Word
-
What is Creative Writing | Creative Writing for Beginners: How to Start, Write and Finish Your First Story
-
How Creative Writing Works | Time, Memory, Backstory and Flashbacks without Losing the Reader
-
Learn Vocabulary Quickly | Explain New Words Until You Actually Understand Them
-
How Mathematics Examination Works | Fractions, Ratios, Percentages and Number Questions Explained
-
How Rhyme Works | Sound, Rhythm, Rhyme Schemes and Meaning in Poetry and Writing
-
How to Write a Composition | Setting, Atmosphere and Description That Make the Story Work
-
How English Examination Works | How to Understand Exam Questions, Command Words and Writing Prompts
-
How G2 Mathematics Works | Reasoning, Representation, Problem Solving and SEC K210 Readiness
-
Examination Preparations | When to Stop Studying New Material Before an Exam
-
Examination Preparations | How to Plan the Final Week Before an Exam
-
Examination Tips Vol.00009 | How to Avoid Careless Mistakes in Exams — Build an Error-Proofing System
-
Translate | Translation Exam Self-Assessment: Mark Your Own Work, Calibrate Judgment and Build Better Practice
-
How Cardiac Mechanosensitive Ion Channels Work | Piezo1, TRP Channels, Stretch, Shear, Calcium and Mechano-Electric Feedback
-
How Cardiac Redox Signaling Works | ROS, NOX2, NOX4, Mitochondria, Thiols and Nitric Oxide
-
How Exam Results Work | Marks, Grades, Score Reports, Reviews and What to Do Next
-
How Cardiac Fibroblasts Work | Matrix Homeostasis, Paracrine Signals, Mechanosensing and Electromechanical Coupling
-
How the Cardiac Phosphocreatine System Works | Creatine Kinase, ATP Buffering, Energy Shuttle, Mitochondria and Myofibrils
-
Translate | GTIN, UPC and EAN Barcodes — Preserve Product and Trade Item Identity Across Languages
-
Translate | GLN Global Location Numbers and GS1 Location Identifiers — Preserve Party and Place Identity Across Languages
-
Translate | Court Case Numbers, Docket Numbers and Neutral Citations — Preserve Legal Case Identity Across Languages
-
Translate | NORAD Catalog Numbers, COSPAR IDs and International Designators — Preserve Satellite and Spacecraft Identity Across Languages
-
What is Primary 2 Vocabulary | Study Skills, Homework, Organisation and Independent Learning Words for Grade 2
-
How to Improve Comprehension | Summarise and Paraphrase What You Read Without Losing Meaning
-
How to Improve Vocabulary | Word Confidence Calibration — Know When to Use, Check or Avoid a Word
-
What is Secondary 4 English Vocabulary | Corpus Evidence, Concordance Lines, Collocations and Real English Usage for Grade 10
-
What is SEC G3 English Vocabulary | Vocabulary in Context — Meaning, Context Clues, Inference and SEC K300 Comprehension
-
What is Secondary 4 English Vocabulary | Semantic Fields, Lexical Sets and Word Networks for Grade 10 Reading and Writing
-
What is Primary 1 Vocabulary | Word Families, Inflections, Compound Words and Early Morphology for Grade 1
-
What is SEC G3 English Vocabulary | Vocabulary in Context — Meaning, Context Clues, Inference and SEC K300 Comprehension
-
Examination Preparations | What to Do After You Finish the Syllabus
-
Examination Preparations | How to Prepare for a Cumulative Exam Without Forgetting Older Topics
-
What is Secondary 4 English Vocabulary | Reference Chains, Pronouns, Demonstratives and Cohesive Noun Phrases for Grade 10
-
What is Primary 1 Vocabulary | Categories, Attributes and Semantic Word Networks for Grade 1
-
Grade 4 Oral Presentation Vocabulary | 100 Speaking, Listening, Voice, Eye Contact, Visual Aid & Feedback Terms
-
Grade 4 Procedural Writing Vocabulary | 100 How-To Writing Terms for Steps, Sequence, Instructions, Safety & Revision
-
Grade 4 Research Skills Vocabulary | 100 Research, Source, Note-Taking, Paraphrasing & Citation Terms
-
Grade 4 Narrative Writing Vocabulary | 100 Story Writing Terms for Plot, Character, Dialogue, Sensory Detail & Revision
-
What is Secondary 3 English Vocabulary | Environment, Climate Change and Sustainability Vocabulary for Grade 9
-
What is Secondary 3 English Vocabulary | Artificial Intelligence, Technology and Digital Literacy for Grade 9
-
What is Primary 1 Vocabulary | Multiple-Meaning Words, Word Senses and Context for Grade 1
-
What is Primary 5 Vocabulary | Assessment, Diagnostic Testing and Learning Profiles
-
What is Secondary 3 English Vocabulary | Media Literacy, Misinformation, Bias and Source Credibility for Grade 9
-
What is Secondary 4 English Vocabulary | Lexical Cohesion, Reference, Repetition and Paragraph Flow for Grade 10
-
What is Primary 5 Vocabulary | Composition Writing, Precise Verbs, Description and Storytelling
-
Examination Tips Vol.00008 | How to Check Exam Answers Before Time Runs Out
-
What is Secondary 3 English Vocabulary | Rhetoric, Persuasion, Ethos, Pathos and Logos for Grade 9
-
What is Primary 1 Vocabulary | Synonyms, Antonyms and Shades of Meaning for Grade 1
-
What is Creative Writing | Creative Writing Skills: The Complete Guide to Becoming a Better Writer
-
What is Secondary 3 English Vocabulary | Emotion, Feelings, Empathy and Characterisation for Grade 9
-
What is Primary 5 Vocabulary | Reading Comprehension, Context Clues and Unknown Word Meaning
-
How Mathematics Examination Works | Functions, Sequences and Calculus Exam Questions Explained
-
How School Works | Parent-Teacher Meetings Explained — How Schools and Families Work Together
Published Pages
System owners, hubs, directories, curriculum routes, institutional maps and long-lived reader-facing reference pages. Noindexed publishing controls, manifests and editorial archives are deliberately excluded from this reader index.
-
Additional Mathematics Transition Gates
-
Additional Mathematics One-Panel Control Tower
-
Understanding Additional Mathematics as a Time-Structured Subject
-
Stages of Additional Mathematics
-
Understanding Additional Mathematics: A Multi-Zoom Approach
-
Why Additional Mathematics Remains Selective in School Systems
-
What Changed in the 2028–2030 Cambridge Add Math Syllabus
-
Cambridge Additional Mathematics vs Singapore Additional Mathematics
-
Why Problem Solving Matters More Than Students Think in Additional Mathematics
-
What the Assessment Objectives of Additional Mathematics Reveal
-
The High-Scoring Student Who Later Falls Apart
-
The High-Pressure Family That Produces Short-Term Results but Long-Term Fragility
-
The School That Produces Good Exam Scores but Weak Transfer
-
Is Additional Mathematics Useful If You Do Not Become a Mathematician?
-
How Additional Mathematics Trains Modelling Thinking
-
Why Additional Mathematics Matters for Engineering Pathways
-
Why Additional Mathematics Matters for Computing
-
Why Additional Mathematics Matters for Economics
-
Why Additional Mathematics Matters for Chemistry
-
Why Additional Mathematics Matters for Physics
-
How to Optimise Additional Mathematics
-
How to Learn Additional Mathematics Properly
-
Why Students Memorise Additional Mathematics but Still Cannot Use It
-
The Most Common Misreads in Additional Mathematics
-
Where Additional Mathematics Actually Breaks
-
Why Add Math Questions Feel Different from E-Math Questions
-
The Sec 2 to Sec 3 Symbolic Shock in Additional Mathematics
-
The E-Math to Add Math Transition Gate
-
Why Students Fail Additional Mathematics Even When They Were Good at Math Before
-
Why Quadratic Equations Are More Than a School Topic
-
Why Surds Still Matter
-
Why Functions Are the Real Spine of Additional Mathematics
-
Why Algebra Dominates Additional Mathematics
-
Why Additional Mathematics Survived Curriculum Reform
-
What Changed in Additional Mathematics Across Syllabus Revisions
-
Why Additional Mathematics Is Taught Before H2 Mathematics but After Core Secondary Math
-
Why Additional Mathematics Became a Pre-University Bridge
-
Why Additional Mathematics Was Assembled into Algebra, Geometry and Trigonometry, and Calculus
-
How Singapore Reframed Additional Mathematics Under the New Secondary Structure
-
Why Polynomials Are a Training Ground for Structural Thinking
-
Why Partial Fractions Exist in Additional Mathematics
-
Why Binomial Expansion Is Included but Kept Bounded
-
Why Exponentials and Logarithms Enter Here
-
Why Trigonometry Changes Character in Additional Mathematics
-
Why Coordinate Geometry of the Circle Appears
-
Why Calculus Enters at This Exact Stage
-
Why Additional Mathematics Feels Like One Subject Even Though It Looks Like Many Topics
-
Why Graphs Keep Returning Across Topics
-
Why Differentiation Comes Before Integration Mastery
-
Why Schools Split Core Mathematics from Advanced Symbolic Mathematics
-
How Cambridge Shaped the Additional Mathematics Tradition
-
How Additional Mathematics Emerged from the Need for a Second Math Corridor
-
History of Additional Mathematics as a School Subject
-
Why Additional Mathematics Is Not Just “Harder Math”
-
Understanding the Role of Additional Mathematics in Education
-
Importance of Additional Mathematics Tuition
-
What Is Additional Mathematics
-
Why Additional Mathematics Exists
-
Explain to Me What Is Additional Mathematics?
-
Why Additional Mathematics Is an Elective
-
Additional Mathematics as a Bridge Subject
-
Why Additional Mathematics Still Matters Today
-
What Is the eduKateSG Learning System?
-
How to Learn Mathematics | Easy 15 Step-by-Step Method
-
CitySim.150Y.CF v0.1 | ScenarioRunner Full Pack Master Index
-
CitySim.150Y.CF v0.1
-
How to Use the Full Package: Reader Routes, Operator Routes, and Publishing Routes
-
How the Full MathOS Package Works: MathOS, CivOS, Education OS, Singapore Estate OS, and CivEngine
-
Where Are We in Mathematics Today?
-
A Complete Map of Mathematics: From Classical Foundations to CivOS Mastery
-
MathOS One-Panel Control Tower
-
How Mathematics Powers the Future of AI and Civilisation
-
What Is the Frontier of Mathematics Now?
-
What Are the Biggest Open Problems in Mathematics?
-
Lane J — Frontier and Runtime Branch v1.0
-
Lane I — MathOS Extension Branch v1.0
-
Mathematics Through Time in MathOS
-
Mathematics Across Zoom Levels: Student, Family, School, Institution, Nation
-
How MathOS Extends Classical Mathematics
-
What Is MathOS?
-
Article 53 — Positive, Neutral, and Negative Mathematics Lattices
-
How Mathematics Works in School
-
How Family, School, and Culture Shape Mathematical Outcomes
-
Mathematics Across the Human Life Route
-
How Mathematics Works in Work, Industry, and Professional Life
-
How Mathematics Penetrates a Society
-
Lane H Parent Control-Tower Page
-
How Mathematics Works in Higher Education
-
Lane F: Mathematics Usefulness and Civilisational Utility Control Page v1.0
-
Why Some Students Memorise Mathematics But Do Not Understand It
-
How Mathematical Gaps Form Over Time
-
Why Mathematical Confidence Breaks
-
How to Repair a Weak Mathematics Foundation
-
What High-Performance Mathematics Learning Looks Like
-
Why Students Struggle With Mathematics Even When They Try Hard
-
Lane G: Mathematics Learning and Repair Control Page v1.0
-
How Mathematics Helps With Measurement, Prediction, and Decision-Making
-
Why Mathematics Is Useful in Science and Engineering
-
How Mathematics Supports Technology, Computing, and AI
-
How Mathematics Shapes Finance, Medicine, and Modern Infrastructure
Learning Projects / Portfolio
Project-layer learning systems, prototypes, specialist routes and experimental knowledge architecture.
-
Secondary 1 Mathematics Tuition | Bartley
-
PSLE Mathematics Tuition | Aljunied
-
Primary 6 Mathematics Tuition | Aljunied
-
Primary 5 Mathematics Tuition | Aljunied
-
Primary 4 Mathematics Tuition | Aljunied
-
Secondary 4 Mathematics Tuition | MacPherson
-
Secondary 3 Mathematics Tuition | MacPherson
-
Secondary 2 Mathematics Tuition | MacPherson
-
Secondary 1 Mathematics Tuition | MacPherson
-
SEC Examination Mathematics Tuition | Clarke Quay
-
Primary 3 Mathematics Tuition | Clarke Quay
-
Primary 2 Mathematics Tuition | Clarke Quay
-
PSLE Mathematics Tuition | Geylang
-
Primary 6 Mathematics Tuition | Geylang
-
Primary 1 Mathematics Tuition | Clarke Quay
-
Primary 5 Mathematics Tuition | Geylang
-
SEC Examination Mathematics Tuition | Selegie Road
-
Primary 4 Mathematics Tuition | Geylang
-
Primary 3 Mathematics Tuition | Selegie Road
-
Primary 2 Mathematics Tuition | Selegie Road
-
Primary 1 Mathematics Tuition | Selegie Road
-
How to Study for Gapped-Text Questions | Cohesion, Reference, Topic Flow and Paragraph Placement
-
How to Study for Classification Questions | Criteria, Features, Boundaries, Examples and Non-Examples
-
How to Study for Sentence Transformation Questions | Preserve Meaning While Changing Grammar, Vocabulary and Structure
-
How to Study for Practical Planning Questions | Variables, Controls, Method, Range, Repeats, Risk and Data Tables
-
PSLE Mathematics Tuition | Kembangan
-
Primary 6 Mathematics Tuition | Kembangan
-
Primary 5 Mathematics Tuition | Kembangan
-
Primary 4 Mathematics Tuition | Kembangan
-
Secondary 4 Mathematics Tuition | Thomson
-
Secondary 3 Mathematics Tuition | Thomson
-
SEC Examination Mathematics Tuition | City Hall
-
Secondary 2 Mathematics Tuition | Thomson
-
Primary 3 Mathematics Tuition | City Hall
-
PSLE Mathematics Tuition | Telok Kurau
-
Primary 6 Mathematics Tuition | Telok Kurau
-
Secondary 1 Mathematics Tuition | Thomson
-
Primary 5 Mathematics Tuition | Telok Kurau
-
Primary 2 Mathematics Tuition | City Hall
-
Primary 4 Mathematics Tuition | Telok Kurau
-
Primary 1 Mathematics Tuition | City Hall
-
PSLE Mathematics Tuition | Eunos
-
Secondary 4 Mathematics Tuition | Sengkang
-
Primary 6 Mathematics Tuition | Eunos
-
Secondary 3 Mathematics Tuition | Sengkang
-
Primary 5 Mathematics Tuition | Eunos
-
SEC Examination Mathematics Tuition | Somerset
-
Primary 3 Mathematics Tuition | Somerset
-
Secondary 2 Mathematics Tuition | Sengkang
-
Primary 4 Mathematics Tuition | Eunos
-
Primary 2 Mathematics Tuition | Somerset
-
Primary 1 Mathematics Tuition | Somerset
-
Secondary 1 Mathematics Tuition | Sengkang
-
PSLE Mathematics Tuition | Joo Chiat
-
Primary 6 Mathematics Tuition | Joo Chiat
-
Primary 5 Mathematics Tuition | Joo Chiat
-
PSLE Mathematics Tuition | Pasir Panjang
-
Primary 6 Mathematics Tuition | Pasir Panjang
-
How to Study for Cloze Passage Questions | Grammar, Vocabulary, Collocation, Cohesion and Context
-
Primary 4 Mathematics Tuition | Joo Chiat
-
Primary 5 Mathematics Tuition | Pasir Panjang
-
Primary 4 Mathematics Tuition | Pasir Panjang
-
Secondary 4 Mathematics Tuition | Potong Pasir
-
Secondary 3 Mathematics Tuition | Potong Pasir
-
SEC Examination Mathematics Tuition | Dhoby Ghaut
-
Secondary 2 Mathematics Tuition | Potong Pasir
-
Primary 3 Mathematics Tuition | Dhoby Ghaut
-
Primary 2 Mathematics Tuition | Dhoby Ghaut
-
PSLE Mathematics Tuition | Siglap
-
Secondary 1 Mathematics Tuition | Potong Pasir
-
Primary 6 Mathematics Tuition | Siglap
-
Primary 5 Mathematics Tuition | Siglap
-
Primary 4 Mathematics Tuition | Siglap
-
Primary 1 Mathematics Tuition | Dhoby Ghaut
-
SEC Examination Mathematics Tuition | Bencoolen
-
Primary 5 Mathematics Tuition | HarbourFront
-
Primary 3 Mathematics Tuition | Bencoolen
-
Primary 4 Mathematics Tuition | HarbourFront
-
How to Study for Assertion-Reason Questions | Test the Assertion, Test the Reason, Then Test the Logical Link
-
Primary 2 Mathematics Tuition | Bencoolen
-
How to Study for Editing Questions | Grammar, Punctuation, Agreement, Tense, Spelling and Error Detection
-
How to Study for Summary Questions | Select Relevant Points, Paraphrase, Compress and Stay Within the Word Limit
-
Primary 1 Mathematics Tuition | Bencoolen
-
How to Study for Listening Comprehension | Preview Questions, Listen for Gist, Detail, Paraphrase and Distractors
-
PSLE Mathematics Tuition | Katong
-
Primary 6 Mathematics Tuition | Katong
-
Primary 5 Mathematics Tuition | Katong
-
Primary 4 Mathematics Tuition | Katong
-
Secondary 4 Mathematics Tuition | Loyang
-
Secondary 3 Mathematics Tuition | Loyang
-
SEC Examination Mathematics Tuition | Bras Basah
-
Secondary 2 Mathematics Tuition | Loyang
-
Primary 3 Mathematics Tuition | Bras Basah
-
Secondary 1 Mathematics Tuition | Loyang
-
How to Study for Multi-Part Questions | Answer Every Part, Track Dependencies, Use Earlier Results and Protect Method Marks
-
Primary 2 Mathematics Tuition | Bras Basah
-
How to Study for Proof Questions | Assumptions, Want-to-Show, Direct Proof, Contradiction and Induction
-
Primary 1 Mathematics Tuition | Bras Basah
-
PSLE Mathematics Tuition | Telok Blangah
-
How to Study for Evaluation Questions | Criteria, Evidence, Trade-Offs, Limitations and Defensible Judgement
Routing rule: use hubs for meaning; use this index for completeness. A deep page should remain discoverable without forcing the main menu to carry the entire library.
Return routes: use Learning Hubs for the normal subject-facing map, World & Knowledge for connected disciplines, Research & Inquiry when evidence and uncertainty are the issue, Civilisation for the longest system view, HELP when the next route is unclear, or the eduKate Ecosystem Hub when the correct federation owner is the question.
