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
2756 results found
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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
4773 results found
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Student/Studying Interface Learning Manual: AI Study-Thread Interface | A Helpful Chat Can Still Lose the Study Job
6–9 minutes -
Student/Studying Interface Learning Manual: Deadline-to-Session Interface | A Due Date Is Not a Study Plan
4–6 minutes -
Bolt Measurement Note 16 — Student Feedback About Teaching Is Evidence, Not a Verdict
6–9 minutes -
Student/Studying Interface Learning Manual: Practice-Set Interface | A Worksheet Does Not Tell You Which Questions Belong in This Session
4–7 minutes -
Student/Studying Interface Learning Manual: Worked-Example Study Interface | Seeing Every Step Still Leaves One Question: What Do You Do When the Example Closes?
6–10 minutes -
Bolt Measurement Note 15 — A Blank Response Is Missing Evidence, Not Automatically Zero Capability
6–9 minutes -
MindOS Learning Manual: Analogical-Mapping State | Two Problems Can Look Different and Still Have the Same Skeleton
6–9 minutes -
Bolt Measurement Note 14 — A Higher Retest Score May Be Part Learning, Part Test Familiarity
6–9 minutes -
Student/Studying Interface Learning Manual: Study Queue Interface | A To-Do List Is Not Yet a Study Order
7–10 minutes -
MindOS Learning Manual: Concept-Boundary State | Knowing the Definition Is Not the Same as Knowing What Belongs
6–9 minutes -
Bolt Measurement Note 13 — A Test With Too Few Questions Can Misrepresent a Skill
6–9 minutes -
MindOS Learning Manual: Example-Generation State | Can You Invent a New Example That Really Fits?
6–9 minutes -
MindOS Learning Manual: Summarisation State | A Shorter Page Can Still Lose the Idea
7–10 minutes -
MindOS Learning Manual: Desirable-Difficulty State | Harder Learning Helps Only When the Difficulty Is Doing Useful Work
6–8 minutes -
MindOS Learning Manual: Mnemonic Encoding State | A Memory Trick Must Still Lead Back to the Meaning
5–7 minutes -
MindOS Learning Manual: Overlearning State | One Correct Answer Is Not Always Enough—but More Is Not Always Better
5–8 minutes -
MindOS Learning Manual: Chunking State | When Five Steps Become One Thing
6–9 minutes -
MindOS Learning Manual: Imagination-to-Learn State | Can You Rehearse the Model Without Looking at It?
5–8 minutes -
MindOS Learning Manual: Drawing-to-Learn State | A Picture Helps Only If You Build the Meaning Into It
5–7 minutes -
MindOS Learning Manual: Concreteness Fading State | The Blocks Are Supposed to Disappear
5–7 minutes -
MindOS Learning Manual: Practice Variability State | Repeating the Same Problem Can Hide the Rule
4–7 minutes -
MindOS Learning Manual: Pretesting State | Failing Before Learning Can Help You Learn
7–11 minutes -
MindOS Learning Manual: Completion Problem State | Can You Finish the Route Before You Build the Whole Route?
4–5 minutes -
MindOS Learning Manual: Question Generation State | Can You Turn What You Studied Into a Good Question?
4–5 minutes -
MindOS Learning Manual: Goal-Free Problem State | When the Goal Itself Overloads the Novice
4–5 minutes -
MindOS Learning Manual: Erroneous Example State | Can You Find Why the Wrong Solution Is Wrong?
4–6 minutes -
MindOS Learning Manual: Successive Relearning State | Remembering It Once Is Not the Same as Keeping It
8–12 minutes -
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
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.
