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
-
Primary 3 English Learning Guide | Opinion Writing: Claim, Reasons, Examples, Audience and Revision
-
Primary 3 English Learning Guide | Oral Communication: Reading Aloud, Conversation, Idea Development and Recovery
-
Primary 3 English Learning Guide | Paragraph Function and Logical Connections Workshop: Introduction, Explanation, Evidence, Sequence, Cause, Comparison and Transitions
-
Primary 3 English Learning Guide | Parts of Speech in Context: Nouns, Verbs, Adjectives, Adverbs and Prepositions
-
Primary 3 English Learning Guide | Personal Recount Writing: Chronology, Significant Moments, Reflection and Voice
-
Primary 3 English Learning Guide | Phrasal Verbs and Common Multi-Word Expressions: Context, Collocation and Register
-
Primary 3 English Learning Guide | Poetry and Literary Language: Imagery, Sound, Character, Theme and Response
-
Primary 3 English Learning Guide | Possessive Nouns and Apostrophes Workshop: Singular and Plural Ownership, Association, Contractions and Editing
-
Primary 3 English Learning Guide | Prefixes, Suffixes and Morphology Workshop: Base Words, Meaning, Word Families, Spelling and Context
-
Primary 3 English Learning Guide | Prepositions Workshop: Time, Place, Movement and Precise Instructions
-
Primary 3 English Learning Guide | Presentation Skills: Planning, Signposting, Voice, Visuals, Questions and Recovery
-
Primary 3 English Learning Guide | Procedural Writing: Goal, Materials, Sequence, Conditions and Testing
-
Primary 3 English Learning Guide | Pronouns, Articles and Reference Chains: Clarity, Cohesion and Meaning
-
Primary 3 English Learning Guide | Question Generation and Metacognitive Reading: Prediction, Monitoring and Repair
-
Primary 3 English Learning Guide | Questions and Negatives Workshop: Do, Does, Did, Be and Meaning-Preserving Rewrites
-
Primary 3 English Learning Guide | Reading Fluency, Phrasing, Silent Reading Stamina and Strategic Rereading
-
Primary 3 English Learning Guide | Reading Multi-Step Instructions and Task Language: Sequence, Conditions, Constraints and Checking
-
Primary 3 English Learning Guide | Reading Tables, Charts, Timetables and Maps: Labels, Units, Comparison and Evidence
-
Primary 3 English Learning Guide | Reading Viewpoint and Bias: Perspective, Language, Selection and Evidence
-
Primary 3 English Learning Guide | Reading, Comprehension, Inference and Evidence Foundations
-
Primary 3 English Learning Guide | Reference Tools: Dictionary, Thesaurus, Glossary, Index and Alphabetical Order
-
Primary 3 English Learning Guide | Regular, Irregular and Collective Nouns Workshop: Plural Forms, Number Meaning, Determiners and Agreement
-
Primary 3 English Learning Guide | Research and Information Literacy: Questions, Sources, Keywords, Notes and Simple Synthesis
-
Primary 3 English Learning Guide | Sentence Combining and Cohesion: Connectors, Pronouns, Reference and Paragraph Flow
-
Primary 3 English Learning Guide | Sentence Expansion: Phrases, Clauses, Reasons, Conditions, Time and Contrast
-
Primary 3 English Learning Guide | Sentence Types and Punctuation: Statements, Questions, Commands, Exclamations, Capitals, Commas and Apostrophes
-
Primary 3 English Learning Guide | Spelling and Word Study: Syllables, Prefixes, Suffixes, Word Families and Dictation
-
Primary 3 English Learning Guide | Story Elements and Plot Workshop: Setting, Character Goal, Problem, Event Chain, Turning Point, Consequence and Resolution
-
Primary 3 English Learning Guide | Subject and Predicate Workshop: Sentence Core, Complete and Simple Subjects, Compound Parts and Editing
-
Primary 3 English Learning Guide | Subject, Object, Possessive and Reflexive Pronouns Workshop: Case, Sentence Roles and Clear Reference
-
Primary 3 English Learning Guide | Subject–Verb Agreement Workshop: Head Nouns, Distractors and Independent Checking
-
Primary 3 English Learning Guide | Summarising and Note-Making: Main Ideas, Keywords, Paraphrase and Recall
-
Primary 3 English Learning Guide | Tense and Time Control: Past, Present, Future, Sequence and Consistency
-
Primary 3 English Learning Guide | The Primary 3 Reset: From Learning to Read to Reading to Learn
-
Primary 3 English Learning Guide | Theme and Central Message Workshop: Topic, Character Choice, Consequence and Evidence
-
Primary 3 English Learning Guide | Verb Forms and Helping Verbs Workshop: Be, Have, Do, Regular and Irregular Forms, Questions and Negatives
-
Primary 3 English Learning Guide | Visual and Multimodal Text: Purpose, Audience, Layout and Evidence
-
Primary 3 English Learning Guide | Vocabulary in Context, Word Families and Cloze Meaning
-
Primary 3 English Learning Guide | Vocabulary, Grammar, Listening and Oral Control
-
Primary 3 English Learning Guide | Whole-Text Revision: Purpose, Cohesion, Consistency, Repetition, Variety and Proofreading
-
Primary 3 English Learning Guide | Word Meaning Relationships: Synonyms, Antonyms, Multiple Meanings, Shades and Collocation
-
Primary 3 English Learning Guide | Writing: Sentences, Paragraphs, Composition and Revision
-
Primary 3 English Sengkang | The Voyage of Water
-
Primary 3 English Tuition Sengkang | Comprehension, Grammar & Composition
-
Primary 3 English Tutor | Curie Series | When Reading Becomes a Tool for Learning
-
Primary 3 English | When English Stops Being Separate Skills | Darwin × Voyage
-
Primary 3 Mathematics Learning Guide | Adding & Subtracting Related Fractions Within One Whole, Equivalent Denominators & Visual Models
-
Primary 3 Mathematics Learning Guide | Addition, Subtraction, Multiplication & Division Word-Problem Structures
-
Primary 3 Mathematics Learning Guide | Angles Smaller/Greater Than a Right Angle, Quarter-Turn Benchmarks, Rotation & Classification
-
Primary 3 Mathematics Learning Guide | Angles, Right Angles, Parallel & Perpendicular Lines
Browse every published Post
3746 results found
-
PSLE Science Reality Lab Vol No.294 | “First Image of a Black Hole” — Was This One Ordinary Camera Photograph?
12–18 minutes -
PSLE Science Reality Lab Vol No.293 | “UPF 50” — Does the Fabric Block Only 50% of UV?
10–14 minutes -
PSLE Science Reality Lab Vol No.292 | “100 W Equivalent” — Does This LED Use 100 Watts?
9–14 minutes -
PSLE Science Reality Lab Vol No.291 | “Listen to the Black Hole” — Did a Microphone Record This Sound in Space?
12–18 minutes -
PSLE Science Reality Lab Vol No.290 | “River Gauge = 3.0 m” — Is the River 3 m Deep?
15–23 minutes -
PSLE Science Reality Lab Vol No.289 | “Forest Carbon Stock = 200 tC/ha” — Did the Forest Remove 200 tC/ha From the Air This Year?
11–16 minutes -
PSLE Science Reality Lab Vol No.288 | “TDS = 250 ppm” on a Pocket Meter — Did It Directly Measure 250 mg/L of Dissolved Solids?
12–18 minutes -
PSLE Science Reality Lab Vol No.287 | “Radar Velocity = 20 m/s” — Is the Wind Actually 20 m/s in Any Direction?
12–18 minutes -
PSLE Science Reality Lab Vol No.286 | “Zero-VOC Paint” — Does That Mean No VOCs Can Ever Enter the Air?
10–16 minutes -
PSLE Science Reality Lab Vol No.285 | “Tree-Cover Loss = 500 ha” — Does That Mean 500 ha Was Permanently Deforested?
10–15 minutes -
PSLE Science Reality Lab Vol No.284 | “Coral Bleaching Alert Level 2” — Does That Mean All the Coral Is Dead?
10–15 minutes -
PSLE Science Reality Lab Vol No.283 | “1,000 Microplastic Particles per Litre” — Does That Mean 1,000 mg/L of Plastic?
11–17 minutes -
Learning Runtime Glossary | MindOS, Bolt, Student Interface and the Language of Learning Control
22–32 minutes -
PSLE Science Reality Lab Vol No.282 | “60% of the eDNA Reads Came From Species A” — Were 60% of the Animals Species A?
12–18 minutes -
PSLE Science Reality Lab Vol No.281 | “Rated EV Range = 300 km” — Will the Car Always Travel 300 km on One Charge?
11–17 minutes -
PSLE Science Reality Lab Vol No.280 | “STC 50” — Does the Wall Make Every Sound 50 dB Quieter?
11–16 minutes -
PSLE Science Reality Lab Vol No.279 | “SEER2 = 20” — Is the Air Conditioner 20% Efficient?
12–18 minutes -
PSLE Science Reality Lab Vol No.278 | “T90 Response Time = 30 s” — Is the Sensor 90% Accurate After 30 Seconds?
14–22 minutes -
PSLE Science Reality Lab Vol No.277 | “ISO 9001 Certified” — Does That Mean Every Product Was Tested and Passed?
13–19 minutes -
PSLE Science Reality Lab Vol No.276 | “Round-Trip Efficiency = 90%” — Does the Battery Keep 90% of Its Charge?
10–15 minutes -
PSLE Science Reality Lab Vol No.275 | “Industrially Compostable” — Will It Break Down in a Backyard Compost Bin?
11–16 minutes -
Secondary English Summary Tutor Sengkang | Selection, Paraphrase, Compression & Meaning Preservation
6–9 minutes -
Secondary English Oral Tutor Sengkang | Planned Response, Conversation & Spoken Interaction
5–8 minutes -
Primary Mathematics Geometry & Mensuration Tutor Sengkang | Angles, Area, Perimeter & Volume
5–7 minutes -
Secondary Biology Tutor Sengkang | Cells, Transport, Nutrition, Respiration & Genetics
5–8 minutes -
Secondary Physics Tutor Sengkang | Forces, Energy, Electricity & Waves
6–9 minutes -
Secondary Chemistry Tutor Sengkang | Particles, Equations, Acids, Metals & Calculations
7–11 minutes -
Secondary Science Experimental Skills Tutor Sengkang | Variables, Measurement, Graphs & Evaluation
7–10 minutes -
Secondary Mathematics Statistics & Probability Tutor Sengkang | Data, Chance & Interpretation
6–9 minutes -
Secondary English Editing Tutor Sengkang | Grammar, Clarity, Concision & Error Detection
7–10 minutes -
PSLE Science Reality Lab Vol No.273 | “The Diversity Index Is Higher” — Does That Simply Mean More Species Were Counted?
15–22 minutes -
Primary Mathematics Fractions, Decimals & Percentages Tutor Sengkang | Part-Whole, Ratio & Change
7–11 minutes -
PSLE Science Reality Lab Vol No.272 | “Zero Waste to Landfill” — Does That Mean the Facility Produced No Waste?
13–20 minutes -
PSLE Science Reality Lab Vol No.271 | “RMSE = 2°C” — Were All Forecasts Within 2°C of the Observations?
14–21 minutes -
PSLE Science Reality Lab Vol No.270 | “Satellite Rainfall = 25 mm” — Did a Rain Gauge Measure 25 mm at Every Point?
16–24 minutes -
Secondary Mathematics Functions & Graphs Tutor Sengkang | Linear, Quadratic & Coordinate Reasoning
7–11 minutes -
Secondary Mathematics Geometry Tutor Sengkang | Angles, Similarity, Circles & Proof
8–11 minutes -
Secondary English Continuous Writing Tutor Sengkang | Ideas, Structure, Argument & Revision
8–12 minutes -
Primary English Vocabulary Tutor Sengkang | Word Meaning, Collocations & Precise Usage
8–12 minutes -
Primary English Grammar Tutor Sengkang | Tenses, Agreement, Synthesis & Editing
8–12 minutes -
Secondary Mathematics Algebra Tutor Sengkang | Expressions, Equations, Factorisation & Transfer
10–15 minutes -
Secondary English Situational Writing Tutor Sengkang | Purpose, Audience, Register & Task Fulfilment
10–15 minutes -
Secondary English Comprehension Tutor Sengkang | Inference, Language Effect & Evidence
10–15 minutes -
Primary 5–6 Science Open-Ended Questions Tutor Sengkang | Concepts, Keywords & Cause-and-Effect
10–16 minutes -
Primary 3–5 Mathematics Word Problems Tutor Sengkang | Translation, Models & Multi-Step Reasoning
12–18 minutes -
PSLE Science Reality Lab Vol No.269 | “5-Tick Energy Label” — Does It Always Use Less Electricity Than a 4-Tick Appliance?
13–19 minutes -
PSLE Science Reality Lab Vol No.268 | “The Headline Says ‘Up 200%’” — How Big Was the Starting Amount?
12–18 minutes -
PSLE Science Reality Lab Vol No.267 | “Population Estimate = 1,200 Animals” — Were 1,200 Animals Actually Counted?
9–14 minutes -
PSLE Science Reality Lab Vol No.266 | “Above the Screening Level” — Does That Prove Harm Has Already Happened?
11–16 minutes -
PSLE English Oral Tutor Sengkang | Reading Aloud & Stimulus-Based Conversation
13–20 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.
