The 20-route learning estate
eduKateSengkang is organised as a Learning Castle: existing subject hubs, level routes, examination routes and learning-system pages retain their jobs. This page is the master upgrade directory. It does not replace those owners. It makes the work visible, assigns every upgrade to one route, and gives new or substantially revised articles stable IDs so later batches can be connected without losing track of what is complete.
Numbering rule
Each route has a -000 hub pointer. Article slots then use reserved tens: -010, -020, -030 and so on. The first upgrade programme reserves up to 150 article slots per route, ending at -1500. Existing high-value URLs are upgraded in place wherever practical; the ID identifies the editorial job, not a requirement to create a new URL.
| Route | Hub ID | Primary job | Existing owner / destination | Reserved article IDs | Status |
|---|---|---|---|---|---|
| SK-01 | SK-01-000 | Homepage, Sengkang Tuition, commercial/navigation/root accuracy | Homepage / Tuition Centre owner | SK-01-010–SK-01-1500 | OPEN |
| SK-02 | SK-02-000 | Primary 1–3 English | Primary English Learning Hub | SK-02-010–SK-02-1500 | OPEN |
| SK-03 | SK-03-000 | Primary 4–6 English + PSLE English | Primary English Learning Hub / PSLE Learning Guide | SK-03-010–SK-03-1500 | OPEN |
| SK-04 | SK-04-000 | Secondary 1–2 English | English Hub | SK-04-010–SK-04-1500 | OPEN |
| SK-05 | SK-05-000 | Secondary 3–4 English + SEC English | English Hub | SK-05-010–SK-05-1500 | OPEN |
| SK-06 | SK-06-000 | Vocabulary, grammar, reading, writing and English skills | Complete English Index | SK-06-010–SK-06-1500 | OPEN |
| SK-07 | SK-07-000 | Primary 1–3 Mathematics | Mathematics Hub | SK-07-010–SK-07-1500 | OPEN |
| SK-08 | SK-08-000 | Primary 4–6 Mathematics + PSLE Mathematics | Mathematics Hub / PSLE Learning Guide | SK-08-010–SK-08-1500 | OPEN |
| SK-09 | SK-09-000 | Secondary 1–2 Mathematics | Mathematics Hub | SK-09-010–SK-09-1500 | OPEN |
| SK-10 | SK-10-000 | Secondary 3–4 Mathematics + SEC Mathematics | Mathematics Hub | SK-10-010–SK-10-1500 | OPEN |
| SK-11 | SK-11-000 | Additional Mathematics | Additional Mathematics owner | SK-11-010–SK-11-1500 | OPEN |
| SK-12 | SK-12-000 | Primary 3–4 Science | Science Hub | SK-12-010–SK-12-1500 | OPEN |
| SK-13 | SK-13-000 | Primary 5–6 Science + PSLE Science | Science Hub / PSLE Science Learning Guide | SK-13-010–SK-13-1500 | OPEN |
| SK-14 | SK-14-000 | Secondary Science + scientific reasoning | Science Hub | SK-14-010–SK-14-1500 | OPEN |
| SK-15 | SK-15-000 | Learning Castle, Learning Runtime and study methods | Learning Runtime Hub | SK-15-010–SK-15-1500 | OPEN |
| SK-16 | SK-16-000 | Examination performance, revision, assessment and error repair | Examination Craft | SK-16-010–SK-16-1500 | OPEN |
| SK-17 | SK-17-000 | Parent guides, tuition, teaching and student support | Parents’ Guide | SK-17-010–SK-17-1500 | OPEN |
| SK-18 | SK-18-000 | Algorithms, computing and advanced mathematics | Algorithms & Computing Hub | SK-18-010–SK-18-1500 | OPEN |
| SK-19 | SK-19-000 | Advanced science and world-knowledge science material | Complete Science Index | SK-19-010–SK-19-1500 | OPEN |
| SK-20 | SK-20-000 | Estate archaeology: duplication, location leakage, orphan control, cannibalisation and consolidation candidates | Learning Castle Registry | SK-20-010–SK-20-1500 | OPEN |
Article register
The first-wave titles and status ledger are live in the eduKate Sengkang Article Register | SK-01 to SK-20. Use it to claim the next article ID, see protected owners and avoid duplicating work already active in another branch.
Protection-first reader standard
All 20 branches now follow the eduKate Sengkang Reader Experience Standard: protect strong pages, connect isolated pages, improve formatting only where it helps, use bounded surgery for specific defects, and modernise only when the existing article no longer completes its reader job.
Article state
Every inspected URL receives one state before work begins: PROTECT for ranking or strategically sensitive owners; KEEP for sound pages needing no substantial rewrite; MODERNISE for useful but outdated pages; SURGERY for small bounded repairs; RETARGET for pages that need a distinct adjacent search job; CONSOLIDATION CANDIDATE for overlapping intent that requires owner review; LOCATION LEAKAGE for misplaced locality; or HISTORICAL for material worth preserving without major reinvestment.
Completion rule
An article ID becomes complete only when the assigned existing URL or new article has a defined reader job, correct owner, current factual scope, useful internal return path and no unresolved collision with another Sengkang owner. A branch can therefore inspect more than 150 URLs without rewriting 150 pages. The 150 slots are a controlled first-wave capacity, not a quota.
Castle relationship
This programme sits under the existing Learning Castle and follows its one-owner-many-routes rule. English, Mathematics, Science, Examination Craft, Learning Runtime and Algorithms retain their existing canonical roles. The master directory exists to coordinate upgrades and make unfinished work visible; it does not create twenty competing subject hubs.
Complete-index crosswalk
Use the 20 routes above to decide ownership and upgrade work. Use these Complete Archives when the job is enumeration, orphan control or direct deep-article discovery.
English Archive · Mathematics Archive · Science Archive · Examination Archive · Learning Runtime Archive · Algorithms & Computing Archive
Deep fallback discovery
The subject hubs and Complete Archives remain the preferred routes. These live indexes are the final orphan-control layer: they expose every published Page and Post through paginated internal links so newly published or unusually placed content still has a crawlable return path while specialist routing is updated.
Browse every published Page
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Primary 1 English Learning Guide | Parts of Speech in Context: Nouns, Verbs, Adjectives, Adverbs and Prepositions
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Primary 1 English Learning Guide | Personal Recount Writing: Chronology, Significant Moments, Reflection and Voice
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Primary 1 English Learning Guide | Picture Composition: Sequence, Cause, Detail and Revision
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Primary 1 English Learning Guide | Poetry and Sound: Rhyme, Rhythm, Repetition, Sensory Words, Feelings and Reading Aloud
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Primary 1 English Learning Guide | Point of View and Perspective: Speaker, Character, Knowledge, Feelings and Evidence
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Primary 1 English Learning Guide | Presentation Skills: Planning, Signposting, Voice, Visuals, Questions and Recovery
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Primary 1 English Learning Guide | Procedural Writing: Goal, Materials, Sequence, Conditions and Testing
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Primary 1 English Learning Guide | Pronouns and Reference Chains: Nouns, Articles, Demonstratives, Clarity and Cohesion
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Primary 1 English Learning Guide | Question Generation and Metacognitive Reading: Prediction, Monitoring and Repair
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Primary 1 English Learning Guide | Reading Comprehension: Literal Meaning, Sequence, Reference and Simple Inference
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Primary 1 English Learning Guide | Reading Fluency, Phrasing, Silent Reading Stamina and Strategic Rereading
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Primary 1 English Learning Guide | Reading Multi-Step Instructions and Task Language: Sequence, Conditions, Constraints and Checking
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Primary 1 English Learning Guide | Reading Tables, Charts, Timetables and Maps: Labels, Units, Comparison and Evidence
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Primary 1 English Learning Guide | Reasons and Simple Persuasion in Reading: Point, Reason, Example, Evidence and Reader Response
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Primary 1 English Learning Guide | Reference Tools: Dictionary, Glossary, Index and Alphabetical Order
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Primary 1 English Learning Guide | Research and Information Literacy: Questions, Sources, Keywords, Notes and Simple Synthesis
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Primary 1 English Learning Guide | Sentence Combining and Cohesion: Connectors, Pronouns, Reference and Flow
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Primary 1 English Learning Guide | Sentence Types and Punctuation: Statements, Questions, Commands, Exclamations, Capitals, Commas and Apostrophes
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Primary 1 English Learning Guide | Spelling and Word Study: Sound Patterns, Word Families and Dictation
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Primary 1 English Learning Guide | Story Elements and Plot: Setting, Character, Goal, Problem, Events, Resolution and Retelling
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Primary 1 English Learning Guide | Summarising and Note-Making: Main Ideas, Keywords, Paraphrase and Recall
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Primary 1 English Learning Guide | Tense and Time Control: Past, Present, Future, Sequence and Consistency
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Primary 1 English Learning Guide | The Primary School Language Reset
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Primary 1 English Learning Guide | Visual and Multimodal Text: Purpose, Audience, Layout and Evidence
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Primary 1 English Learning Guide | Vocabulary Categories and Attributes: Sorting, Grouping, Features, Relationships and Precise Description
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Primary 1 English Learning Guide | Vocabulary in Context, Word Families and Cloze Meaning
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Primary 1 English Learning Guide | Vocabulary, Grammar and Sentence Building
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Primary 1 English Learning Guide | Whole-Text Revision: Purpose, Cohesion, Consistency, Repetition, Variety and Proofreading
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Primary 1 English Learning Guide | Word Building and Morphology: Base Words, Plurals, -s/-es, -ed, -ing, un- and re-
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Primary 1 English Learning Guide | Word Meaning Relationships: Synonyms, Antonyms, Multiple Meanings, Shades and Collocation
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Primary 1 English Sengkang | 5 Signs the Language Engine Needs Repair
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Primary 1 English Sengkang | The Voyage of Water
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Primary 1 English Sengkang | Why a 3-Pax Class Makes Early Language Visible
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Primary 1 English Tuition Sengkang | Reading, Vocabulary & Writing Foundations
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Primary 1 English Tutor | Curie Series | Making Early English Learning Visible
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Primary 1 English | When Reading Becomes Language Control | Darwin × Voyage
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Primary 1 Mathematics Learning Guide | 2D Shapes, Composition, Decomposition, Grids and Spatial Reasoning
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Primary 1 Mathematics Learning Guide | Addition & Subtraction Fact Fluency, Complements and Derived Facts
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Primary 1 Mathematics Learning Guide | Addition and Subtraction Repair Lab: Worked Practice and Teaching Decisions
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Primary 1 Mathematics Learning Guide | Addition and Subtraction Word-Problem Structures: Combine, Change, Compare and Missing Part
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Primary 1 Mathematics Learning Guide | Addition, Subtraction, Multiplication and Division
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Primary 1 Mathematics Learning Guide | Classroom Measurement Investigation: Centimetres, Records and Picture Graphs
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Primary 1 Mathematics Learning Guide | Classroom Shop Investigation: Coin Combinations, Exact Payment and Budget Choices
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Primary 1 Mathematics Learning Guide | Clock and Timeline Laboratory: Five-Minute Intervals, am/pm, Duration and Daily Schedules
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Primary 1 Mathematics Learning Guide | Comparison & Inequality Laboratory: Greater Than, Less Than, Equal, More/Fewer, Ordering and Difference
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Primary 1 Mathematics Learning Guide | Comparison Chains, Ordering, Inequalities and Relative Magnitude
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Primary 1 Mathematics Learning Guide | Counting Collections Laboratory: Ten Frames, Hidden Quantities and Tens-and-Ones Practice
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Primary 1 Mathematics Learning Guide | Data Collection, Survey Questions, Recording and Building Picture Graphs
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Primary 1 Mathematics Learning Guide | Diagnostic Handbook: Error Patterns, Weak Links, Intervention and Recovery
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Primary 1 Mathematics Learning Guide | Equal Groups & Arrays Laboratory: Repeated Addition, Sharing, Grouping and Early Multiplicative Thinking
Browse every published Post
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Student/Studying Interface Learning Manual: Flashcard Study Interface | A Deck Needs Rules Before It Becomes a Study Session
3–5 minutes -
Student/Studying Interface Learning Manual: Learning Platform Interface | A Dashboard Is Not a Study Plan
2–3 minutes -
Student/Studying Interface Learning Manual: Search Study Interface | Finding Information Can Make You Lose the Question
4–6 minutes -
Student/Studying Interface Learning Manual: Notes Study Interface | Notes Need a Route In, Through and Back Out
3–5 minutes -
Student/Studying Interface Learning Manual: Textbook Study Interface | A Chapter Is Not a Study Plan
4–6 minutes -
Student/Studying Interface Learning Manual: Version-Control Interface | You Can Study the Wrong File Perfectly
3–4 minutes -
Student/Studying Interface Learning Manual: Video Study Interface | Pressing Play Is Not a Study Route
3–5 minutes -
Student/Studying Interface Learning Manual: Answer-Key Interface | The Answer Key Is a Tool, Not the Study Plan
3–5 minutes -
Student/Studying Interface Learning Manual: Question Queue Interface | Not Every Question Should Stop the Study Session
4–6 minutes -
Bolt Measurement Note 12 — Your Percentile Can Fall While Your Achievement Rises
8–12 minutes -
Bolt Measurement Note 11 — A Test Score Is an Estimate, Not an Exact Point
8–12 minutes -
Bolt Measurement Note 10 — When the Test Is Too Hard, Low Scores Stop Separating Learners
8–12 minutes -
Bolt Measurement Note 09 — A Perfect Score Can Hide Further Growth
8–13 minutes -
MindOS Learning Manual: Cue-Dependence State | Can You Retrieve the Idea When the Usual Clues Disappear?
6–9 minutes -
MindOS Learning Manual: Correction State | Can You Repair the Error Without Copying the Fix?
5–8 minutes -
From Measurement to Action — A Practical Calibration Guide for Parents, Teachers, Students and AI
10–15 minutes -
How to Read a Learner: Score, Self-Estimate, Teacher, Parent, Task, State and Time
11–17 minutes -
Human Performance Calibration — The Complete Bolt Framework
10–15 minutes -
Student/Studying Interface Learning Manual: Finish-Condition Interface | A Study Session Needs a Definition of Done
3–4 minutes -
Student/Studying Interface Learning Manual: Study-Mode Interface | Learning, Practice and Revision Are Not the Same Session
3–4 minutes -
Student/Studying Interface Learning Manual: Resource-Pack Interface | More Study Resources Can Make the Next Move Less Clear
3–4 minutes -
Student/Studying Interface Learning Manual: First-Action Interface | A Study Plan Can Be Clear and Still Have No Starting Line
3–4 minutes -
Student/Studying Interface Learning Manual: Study Object Interface | You Cannot Organise a Study Session Until You Can Name What You Are Studying
3–5 minutes -
Bolt 40 — Know Yourself — But Keep Checking Against the World
6–9 minutes -
Bolt 39 — What Happens When Nobody Has Enough Evidence?
4–6 minutes -
Bolt 38 — Can a Student Be Right When Everyone Else Is Wrong?
4–6 minutes -
Bolt 37 — Can Parents Be Miscalibrated About a Child?
5–7 minutes -
Bolt Measurement Note 08 — After a Very Bad Result, Improvement May Not Mean the Fix Worked
3–4 minutes -
Bolt Measurement Note 07 — Two Students Can Get the Same Score for Different Reasons
3–4 minutes -
Bolt Measurement Note 06 — The Same Average Can Hide a Wider Performance Gap
2–3 minutes -
Bolt Measurement Note 05 — A Class Average Can Improve While Some Students Fall Behind
3–4 minutes -
Bolt 36 — Can a School Be Miscalibrated About a Student?
6–9 minutes -
Bolt 35 — Calibration Is Not Human Worth
4–6 minutes -
Bolt 34 — How Fast Should You Update What You Believe About Yourself?
4–6 minutes -
Bolt 33 — When the Task Changes, the Model Must Change
4–6 minutes -
Bolt Measurement Note 04 — When the Clock Starts Measuring Something the Test Did Not Mean to Measure
9–13 minutes -
Bolt Measurement Note 03 — When Two Good Teachers Give Different Marks
8–12 minutes -
Bolt Measurement Note 02 — Before You Call It Improvement, Check Whether the Scores Are Comparable
8–12 minutes -
Bolt Measurement Note 01 — A Supported Answer Is Not the Same Measurement as an Independent Answer
9–13 minutes -
Bolt 32 — The Teacher’s Final Job Is to Become Less Necessary
6–9 minutes -
Bolt 31 — The Difference Between a Peak and a Baseline
5–7 minutes -
Bolt 30 — Calibration Under Pressure
5–7 minutes -
Bolt 29 — When the Evidence Disagrees
4–6 minutes -
Bolt 28 — From External Marks to Self-Regulated Learning
5–8 minutes -
MindOS Learning Manual: The Sleep Boundary | Studying Longer Can Steal From Tomorrow’s Learning
8–12 minutes -
Bolt 27 — How Much Evidence Is Enough to Trust a Pattern?
4–6 minutes -
Bolt 26 — One Result Should Not Rewrite the Whole Model
4–6 minutes -
MindOS Learning Manual: Automaticity State | Correct Is Not Enough When Every Basic Step Still Takes Too Much Effort
8–11 minutes -
Bolt 25 — The Same Learner Can Be Calibrated in One Skill and Wrong in Another
4–6 minutes -
MindOS Learning Manual: Generation State | Trying Before Seeing the Answer Can Change What You Notice
8–12 minutes
Routing rule: use this fallback only for discovery and orphan control. Canonical subject ownership, reader pathways and return logic continue to come from the Learning Castle, subject hubs and Complete Archives.
