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
-
English Tuition Sengkang | Find the First Weak Link in the Language System
-
English Tuition Sengkang | Primary & Secondary Small Groups | Large Educational Field Work
-
English Tuition Sengkang | Primary to Secondary, 3 Students
-
English Tuition | A Language for the Life Ahead | eduKate Sengkang
-
English Tutor Sengkang | Small-Group English Tuition
-
English Tutor | Curie Series | Seeing How English Learning Changes
-
Enter Here
-
Entrepreneurship & Creation Tutor | Curie Series | Turning Ideas Into Working Systems
-
Error Patterns | Marie Curie Series | When Repeated Mistakes Become Evidence
-
Evidence Conflict | Marie Curie Series | What to Do When the Signals Disagree
-
Evidence Convergence | Marie Curie Series | When Different Signals Point to the Same Learning State
-
Examination Craft | When Learning Has to Perform
-
Examination Fort Steward | Performance Under Constraints Agent
-
Explain It Back | Marie Curie Series | Can the Learner Reconstruct the Idea Without the Original Explanation?
-
Fair Tests | Variables, Controls & Valid Conclusions | Science Guide
-
Faith’s Secondary 4 A-Math Year
-
Fern Green Primary School: A Parent’s Learning Guide
-
Fernvale Primary School: A Parent’s Learning Guide
-
Finding the Earliest Weak Link in Secondary 1 Mathematics
-
Finding the First Weak Link in Learning | The Six Friends Continue
-
First Four Weeks of Tuition | What Progress Should Look Like
-
Flight Readiness Review | Is the Learning Ready for Independent Operation?
-
Functional Test and Performance Test | Can the Learning Do Its Intended Job?
-
G1, G2 and G3 Secondary 1 Mathematics Under Full Subject-Based Banding
-
G3 SEC Examinations: Let’s Score an A1 | The Complete EMS Learner’s Guide
-
Gatekeeper | Intent and Entry Routing Agent
-
Genome, RNA & Chromatin Biology | Replication, Repair, Expression and Cellular Memory
-
George Orwell | Reason For Existence | Why Orwell Had to Exist
-
GO / HOLD | Proceeding Is a Learning Decision, Not a Learner Label
-
Graduate Transition Tutor | Curie Series | From Education to Adult Responsibility
-
Grandparents and Helpers: Supporting Learning Without Teaching
-
Ground Support | The Help That Makes Independent Learning Possible
-
Handover | The Tutorial Ends, the Learner Carries the Mission Forward
-
Health & Care Literacy Tutor | Curie Series | Learning to Navigate Health Information and Care
-
HOLD, Scrub and Recycle | Pausing Learning Without Losing the Mission
-
Home & Life Administration Tutor | Curie Series | Learning to Run the Invisible Infrastructure of Daily Life
-
How 3-Pax Small-Group Tuition Works | Attention, Comparison and Independent Thinking
-
How a Study Session Works | From First Action to Evidence, Repair and Return
-
How a Study Week Works | New Learning, Delayed Returns and a Plan That Can Adapt
-
How a Tutorial Works | From Arrival to Handover
-
How Abstraction Works in Learning | Finding the Structure That Survives When the Surface Changes
-
How Academic Procrastination Works | When Delay Becomes the Learning Problem and How to Restart
-
How Active and Passive Voice Change Focus and Responsibility | English Tuition Sengkang
-
How Adjective Order Makes Multiple Descriptions Sound Natural and Clear | English Learning Guide
-
How AI-Assisted Study Works | Help That Must Leave the Learner Stronger
-
How Analogies Explain Ideas—and Where Comparisons Break Down | English Tuition Sengkang
-
How Analogy Works in Learning | Borrowing a Familiar Structure Without Carrying the Wrong Features Across
-
How Appositives Rename Nouns and Add Precision Without Repeating the Sentence | English Tuition Sengkang
-
How Approximation Error Propagates Through Multi-Step Mathematics | Mathematics Learning Guide
-
How Argumentative Writing Builds Claim, Evidence and Judgement | English Tuition Sengkang
Browse every published Post
-
What is PG2 for Secondary Schools | Sec 2 English
6–9 minutes -
Learning G1 Science with Ang Mo Kio Tutor
20–30 minutes -
Learning G1 A-Math with Ang Mo Kio Tutor
20–30 minutes -
Learning G1 Mathematics with Ang Mo Kio Tutor
20–30 minutes -
Learning G1 English with Ang Mo Kio Tutor
20–30 minutes -
Learning G3 Science with Ang Mo Kio Tutor
20–30 minutes -
Learning G3 A-Math with Ang Mo Kio Tutor
20–30 minutes -
Learning G3 Mathematics with Ang Mo Kio Tutor
20–30 minutes -
Learning G3 English with Ang Mo Kio Tutor
20–30 minutes -
What is PG1 for Secondary Schools | Sec 2 English
5–8 minutes -
What is G3 for Secondary Schools | Sec 2 English
6–9 minutes -
What is G2 for Secondary Schools | Sec 2 English
5–8 minutes -
What is G1 for Secondary Schools | Sec 2 English
6–10 minutes -
Learning G2 Science with Ang Mo Kio Tutor
20–30 minutes -
Learning G2 A-Math with Ang Mo Kio Tutor
20–29 minutes -
Learning G2 Mathematics with Ang Mo Kio Tutor
23–35 minutes -
Learning G2 English with Ang Mo Kio Tutor
24–36 minutes -
What is PG3 for Secondary Schools | Sec 1 Science
7–10 minutes -
What is PG2 for Secondary Schools | Sec 1 Science
7–11 minutes -
What is PG1 for Secondary Schools | Sec 1 Science
6–9 minutes -
What is G3 for Secondary Schools | Sec 1 Science
9–13 minutes -
Learning G1 Science with Woodlands Tutor
21–31 minutes -
Learning G1 A-Math with Woodlands Tutor
21–32 minutes -
Learning G1 Mathematics with Woodlands Tutor
21–32 minutes -
Learning G1 English with Woodlands Tutor
21–31 minutes -
What is G2 for Secondary Schools | Sec 1 Science
6–9 minutes -
What is G1 for Secondary Schools | Sec 1 Science
7–10 minutes -
What is PG3 for Secondary Schools | Sec 1 Mathematics
5–7 minutes -
What is PG2 for Secondary Schools | Sec 1 Mathematics
6–9 minutes -
Learning G3 Science with Woodlands Tutor
22–33 minutes -
Learning G3 A-Math with Woodlands Tutor
22–33 minutes -
Learning G3 Mathematics with Woodlands Tutor
22–33 minutes -
Learning G3 English with Woodlands Tutor
23–35 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0073 | EMS Assumption Audit Workshop — Given, Derived, Inferred and Merely Assumed
19–29 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0072 | Science: Measurement Uncertainty and Anomalies Workshop — Resolution, Repeats and Defensible Conclusions
17–25 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0071 | Mathematics: Constraints and Feasibility Workshop — Inequalities, Domains, Bounds and Integer Decisions
18–27 minutes -
Learning G2 Science with Woodlands Tutor
19–29 minutes -
Learning G2 A-Math with Woodlands Tutor
19–29 minutes -
Learning G2 Mathematics with Woodlands Tutor
19–29 minutes -
Learning G2 English with Woodlands Tutor
19–29 minutes -
What is PG1 for Secondary Schools | Sec 1 Mathematics
6–9 minutes -
What is G3 for Secondary Schools | Sec 1 Mathematics
7–11 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0070 | English: Rhetorical Function Workshop — Claim, Evidence, Example, Concession and Call to Action
17–25 minutes -
Learning G1 Science with Bishan Tutor
19–29 minutes -
Learning G1 A-Math with Bishan Tutor
19–29 minutes -
Learning G1 Mathematics with Bishan Tutor
19–29 minutes -
Learning G1 English with Bishan Tutor
19–29 minutes -
What is G2 for Secondary Schools | Sec 1 Mathematics
9–13 minutes -
What is G1 for Secondary Schools | Sec 1 Mathematics
9–14 minutes -
Learning G3 Science with Bishan Tutor
20–30 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.
