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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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
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How to Read Connected PSLE Science Set-Ups When One Part Feeds Into the Next
12–19 minutes -
How to Tell a PSLE Science Procedure Step From an Observation or Measurement
11–17 minutes -
How to Tell a PSLE Science Method Limitation From a Mistake in the Investigation
14–21 minutes -
How to Reason Through PSLE Science Inquiry When the Steps Do Not Come in Textbook Order
9–14 minutes -
How to Combine Qualitative and Quantitative Evidence in PSLE Science Without Forcing One Into the Other
10–15 minutes -
How to Decide Whether Two PSLE Science Data Sets Show the Same Relationship
10–14 minutes -
How to Use Healthy Scepticism in PSLE Science Without Distrusting Every Result
9–14 minutes -
Top 10 Listening Skills Worth Learning
23–34 minutes -
How to Decide Whether to Reattempt the Same PSLE Science Paper or Use a New One After Corrections
10–15 minutes -
How to Decide Whether a PSLE Science Investigation Should Use the Same Specimen or Different Similar Specimens
8–12 minutes -
How to Tell Whether a PSLE Science Weakness Is Real Across Several Practice Papers
10–15 minutes -
How to Decide How Long a PSLE Science Investigation Should Run Before the Final Observation
10–15 minutes -
How to Diagnose a PSLE Science Answer That Is Correct but Takes Too Long
9–14 minutes -
How to Read a PSLE Science Cycle When the Diagram Starts at a Different Stage
8–12 minutes -
How to Decide Which Conditions Actually Need to Stay the Same in a PSLE Science Fair Test
9–13 minutes -
How to Choose Between Words, a Diagram, a Table and a Graph in PSLE Science
9–13 minutes -
How to Tell a PSLE Science Definition, Relationship and Mechanism Apart When Revising
15–23 minutes -
How to Check Whether Your PSLE Science Practice Covers Enough Different Reasoning Jobs
10–14 minutes -
How to Decide Between a Descriptive Observation and a Numerical Measurement in PSLE Science
9–14 minutes -
How to Build a Branching Classification Key in PSLE Science From Evidence
9–14 minutes -
How to Keep a PSLE Science Investigation Question, Prediction and Conclusion in Different Jobs
11–17 minutes -
How to Write a PSLE Science Relationship Statement From Data Without Turning It Into a Cause
9–14 minutes -
How to Tell One Trial, One Measurement and One Specimen Apart in a PSLE Science Investigation
11–16 minutes -
How to Read “Increase By” and “Increase To” in PSLE Science Without Mixing Change With Final Value
8–12 minutes -
How to Tell a PSLE Science Variable From the Values Used for It
6–9 minutes -
How to Decide How Much Scientific Detail a PSLE Science Explanation Really Needs
7–10 minutes -
Controlled Variable vs Control Set-Up | PSLE Science Evidence Guide
7–10 minutes -
How to Learn PSLE Science Facts With Conditions Instead of Memorising Them as Always-True Rules
7–11 minutes -
How to Compare a Similarity and a Difference in PSLE Science Using the Same Scientific Basis
9–13 minutes -
How to Change a PSLE Science Answer During Checking Only When the Evidence Gives You a Reason
9–13 minutes -
How to Know When You Are Ready to Move From Untimed PSLE Science Practice to Timed Papers
9–13 minutes -
How to Answer a PSLE Science Question With Two Commands Without Completing Only Half the Job
9–13 minutes -
How to Revise PSLE Science From Your Mistakes Without Re-reading Whole Chapters
11–16 minutes -
How to Answer “How Do You Know?” in PSLE Science With Evidence Instead of a Mechanism
9–14 minutes -
How to Infer the Scientific Question From a PSLE Science Investigation Set-Up
9–14 minutes -
How to Turn PSLE Science Notes Into Retrieval Questions That Test Reasoning, Not Just Definitions
11–17 minutes -
How to Check a PSLE Science Result for Internal Consistency Before You Explain It
9–14 minutes -
How to Decide Which PSLE Science Mistakes to Correct First After a Paper
10–15 minutes -
How to Infer a Missing Stage in a PSLE Science Process Without Guessing From Position
9–14 minutes -
How to Use a Branching Classification Key in PSLE Science Without Changing the Rule Halfway
9–13 minutes -
How to Build a PSLE Science Concept Map That Shows Relationships Instead of Copying Chapter Notes
12–18 minutes -
How to Read a Calculated PSLE Science Value Without Confusing It With a Direct Measurement
10–15 minutes -
How to Keep a PSLE Science Investigation Consistent From Question to Variables to Results to Conclusion
11–17 minutes -
How to Compare a PSLE Science Prediction With the Actual Result Without Rewriting the Prediction Afterward
12–17 minutes -
How to Use Older PSLE Science Practice Papers Without Studying the Wrong Requirements
23–34 minutes -
How to Solve a PSLE Science MCQ With Several Statements Without Treating Them as One Big Option
23–34 minutes -
Top 10 Abstraction Skills Worth Learning
21–32 minutes -
How Questioning Works in Teaching | Designing Questions That Reveal Thinking and Guide the Next Move
84–126 minutes -
Top 10 Prioritisation Skills Worth Learning
18–27 minutes -
How to Read a Reference Line in PSLE Science Data Without Treating It as Another Measured Series
15–23 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.
