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 5 Science Tuition | Why Do Plants Wilt Without Water?
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Primary 5 Science Tuition | Why Do We Breathe Faster After Exercise?
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Primary 5 Science Tuition | Why Do Wet Clothes Dry Faster? Evaporation, Heat, Wind and Surface Area
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Primary 5 Science Tuition | Why Does a Bulb Light Only in a Complete Circuit?
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Primary 5 Science Tutor | Curie Series | Integrated Systems, Variables and Evidence
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Primary 5 Science | When Science Becomes a Systems Problem | Darwin × Voyage
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Primary 5 to Primary 6 Mathematics Bridge | Algebra & Unknowns from Number Sentences, Models & Inverse Thinking
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Primary 5 to Primary 6 Mathematics Bridge | Average from Totals, Equal Sharing & Data
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Primary 5 to Primary 6 Mathematics Bridge | Ratio from Fractions, Rate & Multiplicative Comparison
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Primary 5 to Primary 6 Mathematics Bridge | Speed from Rate, Time & Unit Conversion
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Primary 5 Tuition Sengkang | Building the PSLE Engine Before the Final Year
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Primary 5 → Primary 6 Mathematics Bridge | Percentage Difference, Percentage Change & Changing Reference Bases
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Primary 6 English Learning Guide | Articles, Determiners and Quantifiers: Reference, Quantity and Scope
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Primary 6 English Learning Guide | Cause, Contrast, Sequence and Comparison: Reading Logical Relationships
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Primary 6 English Learning Guide | Composition Sentence Craft, Cohesion and Paragraph Flow
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Primary 6 English Learning Guide | Comprehension Cloze: Cohesion, Context and Whole-Text Meaning
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Primary 6 English Learning Guide | Comprehension Question Types and Answer Precision
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Primary 6 English Learning Guide | Continuous Writing: Picture Stimulus Selection and Integration
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Primary 6 English Learning Guide | Continuous Writing: Topic, Plot and Revision
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Primary 6 English Learning Guide | Exam Error Analysis, Correction and Transfer
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Primary 6 English Learning Guide | Exam Simulation, Stamina, Time Control and Recovery
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Primary 6 English Learning Guide | Final PSLE Revision and the Secondary 1 Handover
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Primary 6 English Learning Guide | Grammar Cloze, Editing and Sentence Control
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Primary 6 English Learning Guide | Grammar for Meaning: Modality, Conditionals, Reported Speech and Passive Voice
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Primary 6 English Learning Guide | Independent Weekly Revision: Retrieval, Spacing, Transfer and Self-Checking
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Primary 6 English Learning Guide | Inference Across Paragraphs: Motive, Change and Evidence Boundaries
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Primary 6 English Learning Guide | Listening Comprehension: Preview, Evidence and Distractor Control
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Primary 6 English Learning Guide | Listening Comprehension: Selective Note-Taking, Numbers, Speakers and Change Signals
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Primary 6 English Learning Guide | Listening, Oral, Examination Control and the Secondary 1 Bridge
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Primary 6 English Learning Guide | Metacognition, Self-Checking and Independent Exam Control
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Primary 6 English Learning Guide | Non-Fiction Reading: Claims, Evidence, Fact, Opinion and Reliability
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Primary 6 English Learning Guide | Open-Ended Answer Editing: Precision, Completeness and Meaning
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Primary 6 English Learning Guide | Oral Communication: Reading Aloud and Stimulus-based Conversation
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Primary 6 English Learning Guide | Oral on Unfamiliar Topics: Reasoning Without Specialised Knowledge or Prepared Scripts
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Primary 6 English Learning Guide | Paper 2 Mixed-Skill Switching and Diagnostic Practice
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Primary 6 English Learning Guide | Phrasal Verbs, Idioms and Fixed Expressions: Meaning, Register and Natural Use
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Primary 6 English Learning Guide | Prepositions and Fixed Collocations: Time, Place, Movement and Natural Usage
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Primary 6 English Learning Guide | PSLE English Myths and False Rules: What the 2026 Examination Actually Requires
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Primary 6 English Learning Guide | Punctuation and Sentence Boundaries: Commas, Apostrophes and Dialogue
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Primary 6 English Learning Guide | Question Command Words and Answer Forms
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Primary 6 English Learning Guide | Reading Aloud: Phrasing, Stress, Pace, Pronunciation and Recovery
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Primary 6 English Learning Guide | Reading Under Time: Passage Navigation, Evidence and Recovery
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Primary 6 English Learning Guide | Reading, Comprehension, Inference and Evidence
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Primary 6 English Learning Guide | Reference, Pronouns and Cohesion: Tracking Meaning Across a Passage
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Primary 6 English Learning Guide | Situational Writing: Content Points and Tone
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Primary 6 English Learning Guide | Situational Writing: Source-Pack Selection, Transformation and Task Accuracy
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Primary 6 English Learning Guide | Spelling, Morphology and Word Formation in Editing
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Primary 6 English Learning Guide | Stimulus-Based Conversation: Opinion, Reason, Example, Follow-Up and Recovery
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Primary 6 English Learning Guide | Subject–Verb Agreement: Finding the True Subject
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Primary 6 English Learning Guide | Synthesis and Transformation: Meaning Preservation
Browse every published Post
3746 results found
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How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0013 | Mock Papers: Sit, Mark, Diagnose, Repair and Retest
6–9 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0008 | Science: Keep the Claim Inside the Evidence
19–29 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0007 | Mathematics: Recover When the First Method Fails
19–28 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0012 | Science Cause, Mechanism and Evidence in Structured Responses
9–13 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0011 | Mathematics Equations, Functions and Multi-Step Transfer
9–13 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0012 | Science: Calculations, Graphs and Data — From Numbers to Evidence
6–8 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0011 | Mathematics: Paper 1 Short-Answer Fluency, Working and Accuracy
5–8 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0010 | English: Paper 1 Editing, Situational Writing and Continuous Writing
6–9 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0009 | Attempt, Skip, Return, Check: The Decision Tree for Timed Papers
6–9 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0010 | English Comprehension, Evidence, Inference and Summary
9–13 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0009 | The Secondary 1 Learning Engine
10–15 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0006 | English: Use the Passage, Not Memory, as Evidence
20–31 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0008 | Science Concepts, Data and Practical Reasoning
11–16 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0007 | Mathematics Algebra, Graphs and Problem Representation
10–15 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0008 | Science: MCQ, Structured Responses and Experimental Reasoning Under Time
6–10 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0007 | Mathematics: Paper 2 Modelling, Real-World Problems and Smart Question Choice
6–10 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0006 | English: Paper 2 Comprehension, Inference and Summary Under Time
7–10 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0005 | Build a Six-Week Route from Weak Topics to Full Papers
7–11 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0006 | English Reading-to-Writing Transfer
10–15 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0005 | The First 90 Days After PSLE
10–15 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0005 | Budget Marks, Time and Attention
19–29 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0004 | Science: Evidence, Mechanism and Explanation
9–13 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0003 | Mathematics: Method, Working and Accuracy
9–13 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0004 | Science Evidence, Explanations and Practical Reasoning
8–12 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0003 | Mathematics Reasoning, Models and Accuracy
8–11 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0002 | English Four-Paper Control
8–13 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0001 | Examination Control Foundations
12–18 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0002 | English: Control the Task Before You Write
10–15 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0001 | From PSLE to SEC: What Changes and What Still Works
11–16 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0002 | English: Answer the Actual Task
9–14 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0001 | Read Before You Solve
12–18 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0004 | Science: Evidence Before Explanation
6–8 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0003 | Mathematics: Represent Before You Calculate
6–9 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0002 | English: Answer the Actual Task
6–9 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0001 | Read Before You Solve
6–9 minutes -
Primary 6 Mathematics: PSLE Readiness and Transfer
41–62 minutes -
Primary 5 Mathematics: Ratios, Percentages, Volume and Problem Representation
41–61 minutes -
Primary 4 Mathematics: Fractions, Decimals, Measurement and Multi-Step Problems
48–72 minutes -
Primary 1–3 Mathematics Tuition: How Foundations Compound
41–62 minutes -
Primary 3 Mathematics: Multiplication, Division, Fractions and Word Problems
41–61 minutes -
Primary 2 Mathematics: Place Value, Operations and Model Building
41–62 minutes -
Advanced Mathematics Tutorials | When a Child Refuses to Attend Mathematics Tuition — Diagnose the Reason Before Forcing the Routine
42–63 minutes -
Primary 1 Mathematics: Number Sense, Representation and Early Problem Solving
41–61 minutes -
Advanced Mathematics Tutorials | Should Mathematics Tuition Follow the School Syllabus or Run Its Own Curriculum?
42–63 minutes -
Advanced Mathematics Tutorials | Relief or Substitute Mathematics Tutor — How to Preserve Continuity When the Regular Tutor Is Away
42–64 minutes -
How Multimodal Reading Works Across Words, Images, Captions and Layout
41–62 minutes -
Advanced Mathematics Tutorials | Two Mathematics Tutors at the Same Time — When More Support Helps and When It Creates Conflict
43–64 minutes -
How Grammar Supports Meaning Rather Than Rule Memorisation
41–62 minutes -
Advanced Mathematics Tutorials | Mathematics Tuition Attention and Stamina — Why a Student Can Work Well for 30 Minutes and Fade Across a 90-Minute Lesson
42–63 minutes -
Advanced Mathematics Tutorials | Missed Mathematics Tuition Lessons — How to Catch Up Without Losing Continuity
42–63 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.
