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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Caregiving Tutor | Curie Series | Learning to Support Another Person Safely
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Cartographer | Node, Owner and Route Mapping Agent
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Castellan | Learning Castle Orchestrator
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Checkout | What Must Be Checked Before We Build Further?
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Chemistry, Matter & Reactions | From Materials to Particles, Rates and Equilibrium
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CHIJ St. Joseph’s Convent: A Parent’s Learning Guide
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Ciara’s Primary 5 Fractions
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Civic & Public Systems Tutor | Curie Series | Learning to Navigate Institutions, Services and Public Life
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Communication & Relationships Tutor | Curie Series | Learning to Understand and Be Understood
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Community & Contribution Tutor | Curie Series | Learning to Be Useful Beyond the Self
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Compassvale Primary School: A Parent’s Learning Guide
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Compassvale Secondary School: A Parent’s Learning Guide
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Complete Algorithms & Computing Index | eduKate Sengkang
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Complete English Index | eduKate Sengkang English Estate
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Complete Examination Craft Index | eduKate Sengkang Examination Estate
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Complete Learning Runtime Index | MindOS, Bolt & Student Interface
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Complete Mathematics Index | eduKate Sengkang Mathematics Estate
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Complete Science Index | eduKate Sengkang Science Estate
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Confidence Calibration | Marie Curie Series | When Feeling Ready and Being Ready Diverge
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Countdown | The Final Learning Sequence Before Independent Release
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Creative & Intellectual Life Tutor | Curie Series | Learning Beyond Immediate Utility
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December Holidays: What to Do Before P5, P6 and Sec 1
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Decision & Judgement Tutor | Curie Series | Learning to Decide Under Uncertainty
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Denise’s Secondary 2 Algebra
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Different Ways to Improve Additional Mathematics with eduKateSengkang
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Digital & AI Literacy Tutor | Curie Series | Learning to Use Technology Without Surrendering Judgement
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Disruption & Recovery Tutor | Curie Series | Rebuilding Capability After Life Changes
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Do You Need 1-to-1 Science Tuition? | Why We Usually Prefer 3-Pax
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Does a Primary 1 Child Need English Tuition? | 5 Questions First
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Does My Child Actually Need Tuition?
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Does My Child Need Secondary 1 Mathematics Tuition?
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Early Career Tutor | Curie Series | Learning How Real Work Works
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Earth & Space Science | Weather, Oceans, Geology, Planets and Stars
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Ecology & Environmental Science | Ecosystems, Populations and Resilience
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Educational Field of Sengkang | How We Build an Education Network
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eduKate Sengkang Article Register | SK-01 to SK-20
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eduKate Sengkang Education Runtime | How the Learning System Works
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eduKate Sengkang Reader Experience Standard | Protect, Clarify, Connect
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eduKate Sengkang Tuition Centre | Inside a Useful Lesson
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eduKateSengkang Learning Atlas V2.0 | The Learner Runtime Map
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eduKateSengkang Runtime Manifest | Learner Runtime
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Emily’s Secondary 3 Mid-Year
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End-to-End Test | Can the Whole Learning Route Work from Start to Finish?
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English Checking by Paper Component | Comprehension, Summary, Writing and Editing
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English Checking Routine | Five Checks and a 90-Second Exam Review
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English Evidence Check | Stated Details and Supported Inference Practice
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English Fort Steward | Language, Meaning and Expression Agent
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English Hub | A Voice Can Travel
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English Tuition Learning Guide | Reading, Writing, PSLE and SEC
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English Tuition Punggol | Local Gateway to the English Learning System
Browse every published Post
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How to Perform in PSLE | Learner’s Guide Vol 0040 | English: Separate What Was Said From Why It Was Said
19–28 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0033 | The Final 24 Hours: EMS Readiness, Logistics, Sleep and Morning Control
17–25 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0039 | Separate a Missing Part From a Wrong Part Before You Rewrite
19–28 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0032 | Science: The Last 7 Days Before the G3 Papers
17–25 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0031 | Mathematics: The Last 7 Days Before K310
16–25 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0030 | English: The Last 7 Days Before K300
17–25 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0029 | Exam-Day EMS Control: Arrival, Launch, Pacing, Recovery, Checking and Paper-to-Paper Handoffs
17–25 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0038 | Science: Separate a Cause From a Necessary Condition
20–30 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0037 | Mathematics: Track the Base Through Successive Percentage Changes
18–26 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0028 | Science Final Stretch: Error Conversion, Practical Control and Last-Mile Marks
17–25 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0036 | English: Track the Writer’s Revision From First Impression to Final Meaning
19–28 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0027 | Mathematics Final Stretch: Error Conversion, Accuracy, Recovery and Last-Mile Marks
17–25 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0026 | English Final Stretch: Four-Paper Control, Error Conversion and Exam-Week Stability
17–25 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0035 | Name the Decision Before You Start the Work
19–28 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0025 | The Final 30 Days: An EMS SEC Performance System
17–25 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0024 | Science Full-Paper Integration: MCQ, Structured Response, Practical, Stamina and Checking
17–25 minutes -
Why Students Struggle With Additional Mathematics Even When E-Math Is Strong
41–62 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0032 | Science: Structured-Question Decomposition — Task, Evidence, Operation, Answer
19–28 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0031 | Mathematics: Representation Switching — Words, Equations, Tables, Graphs and Diagrams
19–28 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0034 | State What Evidence Would Make You Change Your Answer
28–42 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0034 | Reset After One Difficult Question Before You Start the Next
22–33 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0030 | English: Tone and Register — Match Audience, Purpose, Relationship and Medium
19–29 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0033 | Science: Replace the Topic Label With the Actual Mechanism
27–41 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0033 | Science: Match the Command Word Before You Write the Science
26–39 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0032 | Mathematics: Use Parity and Divisibility as Fast Consistency Checks
24–36 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0032 | Mathematics: Separate Total, Average and Count Before You Change One of Them
23–35 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0031 | English: Track Repeated Details Before You Infer What Matters
25–38 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0031 | English: Separate Observation From Interpretation Before You Name a Character Trait
19–28 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0029 | First Answer or Second Thought? Change Only When the Evidence Changes
19–29 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0028 | Science: Combined-Science Mode Switching — Change the Model Without Losing the Evidence
19–29 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0027 | Mathematics: Error Containment — Keep Multi-Step Solutions Alive After One Slip
19–29 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0030 | Turn Every Correction Into a Future Trigger
22–32 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0026 | English: Cohesion and Coherence — Make Every Sentence and Paragraph Connect
19–29 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0029 | Science: Separate Evidence That Supports From Evidence That Merely Fits
21–31 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0028 | Mathematics: Use Bounds to Reject Impossible Answers Before Exact Work
19–28 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0025 | Mark Security — Bank the Available Marks Before Chasing the Hardest Question
19–29 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0027 | English: Track Who Knows What Before You Infer Motive
21–31 minutes -
Secondary 1–2 Mathematics: Why Representation Errors Become Algebra Errors
41–62 minutes -
PSLE Mathematics: Diagnose Topic, Representation, Procedure and Decision Errors
44–67 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0026 | Name the First Useful Move Before You Decide You Are Stuck
22–33 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0023 | Mathematics Full-Paper Integration: Paper 1, Paper 2, Modelling, Stamina and Checking
17–25 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0026 | Do Not Diagnose a Knowledge Gap Until a Launch Move Fails
24–37 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0023 | Science: Compare Change From the Same Starting Point
26–38 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0022 | English Integrated Paper Strategy: Writing, Comprehension, Listening and Oral as One System
17–25 minutes -
Advanced Mathematics Tutorials | Should a Student Keep the Same Mathematics Tutor from Secondary 1 to Secondary 4?
42–63 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0022 | English Integrated Paper Strategy: Writing, Comprehension, Listening and Oral as One System
17–26 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0022 | Mathematics: Find What Stays the Same Before You Compare Before and After
19–28 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0024 | Mathematics: Do Not Confuse Equal Parts With Equal Differences
19–28 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0021 | Secondary 4 Examination-Year Control: From Syllabus Completion to Final SEC Performance
17–25 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0025 | Science: Compare the Change, Not Just the Final Value
30–45 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.
