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
-
How to Learn Basic English (Chinese Edition) | Lesson No.071 | Listening to Implication, Attitude and Discourse | 听懂暗示、态度与篇章结构
-
How to Learn Basic English (Chinese Edition) | Lesson No.072 | B2 Reading and Writing Performance | B2 阅读写作表现
-
How to Learn Basic English (Chinese Edition) | Lesson No.073 | Inversion and Emphasis | 倒装与强调
-
How to Learn Basic English (Chinese Edition) | Lesson No.074 | Cleft Sentences and Information Focus | 分裂句与信息焦点
-
How to Learn Basic English (Chinese Edition) | Lesson No.075 | Multi-Source Synthesis and Source Positioning | 多来源综合与来源定位
-
How to Learn Basic English (Chinese Edition) | Lesson No.076 | From B2 to C1 | 从 B2 走向 C1
-
How to Learn Basic English (Chinese Edition) | Lesson No.077 | Advanced Hedging and Precision | 高级模糊限制与精确表达
-
How to Learn Basic English (Chinese Edition) | Lesson No.078 | Cohesion Across Long Arguments | 长篇论证中的衔接
-
How to Learn Basic English (Chinese Edition) | Lesson No.079 | Reading Assumptions, Bias and Framing | 阅读隐含前提、偏向与框架
-
How to Learn Basic English (Chinese Edition) | Lesson No.080 | C1 Discussion and Analytical Writing | C1 讨论与分析写作
-
How to Learn Basic English (Chinese Edition) | Lesson No.081 | Advanced Reporting Verbs and Source Distance | 高级转述动词与来源距离
-
How to Learn Basic English (Chinese Edition) | Lesson No.082 | Lexical Bundles and Academic Phraseology | 高频学术语块与短语结构
-
How to Learn Basic English (Chinese Edition) | Lesson No.083 | Listening to Nuance, Irony and Pragmatic Meaning | 听懂细微语气、反讽与语用意义
-
How to Learn Basic English (Chinese Edition) | Lesson No.084 | C1 Review and Independent Performance | C1 复习与独立表现
-
How to Learn Basic English (Chinese Edition) | Lesson No.085 | Advanced Collocation and Semantic Precision | 高级搭配与语义精度
-
How to Learn Basic English (Chinese Edition) | Lesson No.086 | Reading Complex Evidence and Method Claims | 阅读复杂证据与方法主张
-
How to Learn Basic English (Chinese Edition) | Lesson No.087 | Speaking Across Registers and Audiences | 跨语体与受众口语表达
-
How to Learn Basic English (Chinese Edition) | Lesson No.088 | From C1 Toward C2 | 从 C1 走向 C2
-
How to Learn Basic English (Chinese Edition) | Lesson No.089 | Precision in Metaphor, Analogy and Figurative Language | 比喻、类比与修辞语言的精确控制
-
How to Learn Basic English (Chinese Edition) | Lesson No.090 | Synthesising Across Disciplines | 跨学科综合
-
How to Learn Basic English (Chinese Edition) | Lesson No.091 | Advanced Editing for Meaning, Style and Register | 高级意义、风格与语体编辑
-
How to Learn Basic English (Chinese Edition) | Lesson No.092 | C2-Direction Review and Expert Communication | C2 方向复习与专家沟通
-
How to Learn Basic English (Chinese Edition) | Lesson No.093 | Negotiating Definitions, Standards and Criteria | 协商定义、标准与判据
-
How to Learn Basic English (Chinese Edition) | Lesson No.094 | Expert Listening and Multi-Layer Source Tracking | 专家听力与多层来源追踪
-
How to Learn Basic English (Chinese Edition) | Lesson No.095 | Writing Executive, Public and Technical Versions | 行政、公众与技术版本写作
-
How to Learn Basic English (Chinese Edition) | Lesson No.096 | C2-Direction Capstone and Lifelong Language Maintenance | C2 方向顶点与终身语言维护
-
How to Learn Basic English (Chinese Edition) | Lesson No.097 | Advanced Translation and Mediation Without Meaning Drift | 高级翻译与调解中的意义保持
-
How to Learn Basic English (Chinese Edition) | Lesson No.098 | Negotiation, Consensus and Productive Disagreement | 协商、共识与建设性分歧
-
How to Learn Basic English (Chinese Edition) | Lesson No.099 | Writing for Policy, Decisions and Recommendations | 政策、决策与建议写作
-
How to Learn Basic English (Chinese Edition) | Lesson No.100 | Mastery Review: From Beginner to Independent Expert English | 总复习:从零基础到独立专家英语
-
How to Learn Basic English (Chinese Edition) | Lesson No.101 | Research Reading and Verification | 研究阅读与验证
-
How to Learn Basic English (Chinese Edition) | Lesson No.102 | Communicating Uncertainty and Confidence | 表达不确定性与置信度
-
How to Learn Basic English (Chinese Edition) | Lesson No.103 | High-Stakes Professional Communication | 高风险专业沟通
-
How to Learn Basic English (Chinese Edition) | Lesson No.104 | Expert Maintenance Cycle and Deliberate Practice | 专家维护循环与刻意练习
-
How to Learn Basic English (Chinese Edition) | Lesson No.105 | Incident Reports, Postmortems and Learning Reviews | 事故报告、复盘与学习回顾
-
How to Learn Basic English (Chinese Edition) | Lesson No.106 | Explaining Models, Assumptions and Limits | 解释模型、假设与边界
-
How to Learn Basic English (Chinese Edition) | Lesson No.107 | Facilitating Meetings, Panels and Expert Q&A | 主持会议、讨论与专家问答
-
How to Learn Basic English (Chinese Edition) | Lesson No.108 | Annual Language Audit and Personal Expert Portfolio | 年度语言审计与个人专家作品集
-
How to Learn Basic English (Chinese Edition) | Lesson No.109 | Writing Playbooks, SOPs and Decision Guides | 编写操作手册、SOP 与决策指南
-
How to Learn Basic English (Chinese Edition) | Lesson No.110 | Communicating Metrics, Dashboards and Trends | 解释指标、仪表板与趋势
-
How to Learn Basic English (Chinese Edition) | Lesson No.111 | Coaching, Feedback and Performance Conversations | 教练、反馈与表现对话
-
How to Learn Basic English (Chinese Edition) | Lesson No.112 | Long-Term Expert Maintenance Review | 长期专家维护复盘
-
How to Learn Basic English (Chinese Edition) | Lesson No.113 | Writing Requirements, Specifications and Acceptance Criteria | 编写需求、规格与验收标准
-
How to Learn Basic English (Chinese Edition) | Lesson No.114 | Knowledge Handoffs, Succession and Institutional Memory | 知识交接、传承与组织记忆
-
How to Learn Basic English (Chinese Edition) | Lesson No.115 | Cross-Cultural Professional Communication | 跨文化专业沟通
-
How to Learn Basic English (Chinese Edition) | Lesson No.116 | Expert Systems Review: Language as Operational Infrastructure | 专家系统复盘:把语言作为操作基础设施
-
How to Learn Basic English (Chinese Edition) | Lesson No.117 | Communicating Risk, Controls and Assurance | 风险、控制与保证沟通
-
How to Learn Basic English (Chinese Edition) | Lesson No.118 | Writing Change Plans, Rollouts and Rollbacks | 编写变更计划、发布与回滚
-
How to Learn Basic English (Chinese Edition) | Lesson No.119 | Decision Logs, Governance and Accountability | 决策记录、治理与问责
-
How to Learn Basic English (Chinese Edition) | Lesson No.120 | Expert Maintenance Capstone: Operating in English Across Systems | 专家维护顶点:用英语跨系统运作
Browse every published Post
-
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0128 | Reversible vs Irreversible Moves — Preserve Options Until the Evidence Is Strong Enough
38–58 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0127 | Science: Dynamic Balance — A Stable Result Does Not Mean Nothing Is Happening
41–61 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0126 | Mathematics: Monotonicity Checks — Know Which Way the Output Must Move as the Input Changes
36–55 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0125 | English: Tense–Aspect Control — Track What Happened, What Was Ongoing and What Came Earlier
41–61 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0124 | Constraint Stack — Satisfy Every Active Rule Without Losing the Main Task
39–58 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0065 | Conflicting Evidence Workshop: From Disagreement to a Defensible EMS Answer
19–28 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0064 | Science: The First 30 Minutes — A Worked Decision Clinic
20–30 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0123 | Science: Path Dependence — The Same Input Can Produce a Different Result When the History Is Different
48–72 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0122 | Mathematics: Breakpoint Reasoning — Test Below, At and Above the Value Where the Rule Changes
39–59 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0121 | English: Information-Focus Control — Notice What the Sentence Makes Most Prominent
45–67 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0120 | Answer-State Control — Know Whether the Question Is Parsed, Solved, Blocked, Verified or Closed
42–63 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0119 | Science: Response Lag — The Cause Can Change Before the Effect Becomes Measurable
45–68 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0118 | Mathematics: Conservation and Balance Checks — Rebuild the Whole to Test the Parts
38–58 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0117 | English: Reference-Frame Control — Who Is Here, When Is Now and Which Way Is Left?
36–54 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0116 | Dependency Blast Radius — Repair the Error According to How Far It Spreads
37–56 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0115 | Science: Baseline Drift — Check Whether the Reference Condition Is Moving Too
40–61 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0114 | Mathematics: Forward-Substitution Verification — Put the Answer Back Into the Original Problem
37–55 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0113 | English: Reporting-Verb Calibration — Says, Claims, Admits, Confirms and Suggests Are Not the Same
41–62 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0112 | Evidence Debt — Pay Every Unsupported Step Before It Carries the Answer
19–28 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0063 | Mathematics: The First 30 Minutes of K310
17–25 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0062 | English: The First 30 Minutes of K300
17–25 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0064 | One Example Does Not Prove a Rule — Test a Second Case Before You Generalise
23–35 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0063 | Science: The Same Temperature Does Not Mean the Same Amount of Heat Was Transferred
19–29 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0111 | Science: Rate Versus Amount — Do Not Confuse How Fast With How Much
44–66 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0110 | Mathematics: Comparison-Measure Choice — Difference, Ratio, Percentage or Rate?
43–64 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0061 | The First 30 Minutes: EMS Sustained First-Pass Control
17–25 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0109 | English: Negation-Scope Control — Know Exactly What the Negative Word Reverses or Limits
48–72 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0108 | Local–Global Consistency — Make Every Correct Step Fit the Whole Problem
19–29 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0062 | Mathematics: Use a Double Number Line Without Changing the Base Quantity Midway
19–29 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0061 | English: Track What a Descriptive Phrase Actually Modifies Before You Infer Meaning
22–33 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0060 | Science: The First 10 Minutes of the G3 Papers
17–25 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0107 | Science: Interaction Effects — When the Effect of One Factor Depends on Another
31–47 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0103 | Science: Sequence and Carryover Effects — When the Previous Trial Changes the Next
20–30 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0106 | Mathematics: Representation Choice — Pick the Form That Exposes the Relationship You Need
25–38 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0105 | English: Presupposition Control — Separate What a Sentence States From What It Quietly Assumes
26–40 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0104 | Representation Handoffs — Change Form Without Losing the Information That Controls the Answer
20–30 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0102 | Mathematics: Solution-Set Preservation — Know Which Algebraic Moves Are Truly Reversible
19–29 minutes -
How to Perform in PSLE | Learner’s Guide Vol 0060 | Check the Handoff When You Move Between Words, Diagrams, Numbers and Answers
20–30 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0101 | English: Modality and Certainty Control — Must, Should, May, Might, Can and Could
20–30 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0103 | Science: Model-Validity Boundaries — Know Where a Useful Model Stops Being Reliable
31–46 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0100 | Auditable Partial Solutions — Make Valid Reasoning Visible When You Cannot Finish
20–30 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0102 | Mathematics: Work-Backward Reconstruction — Start From the Target and Rebuild the Necessary Steps
30–45 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0101 | English: Exception Control — Store the Rule Together With the Boundary That Limits It
26–39 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0100 | Checkpoint Compression — Store the Smallest State You Need to Resume Accurately
21–31 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0099 | Science: Control-Condition Logic — Know Which Alternative Explanation Each Control Rules Out
38–57 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0098 | Mathematics: Case Splitting — Know When One Problem Needs More Than One Valid Branch
30–45 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0097 | English: Question-Stem Parsing — Know the Answer Shape Before You Search the Passage
35–52 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0096 | Response-Interface Integrity — Make Sure the Final Paper Says What You Actually Know
20–31 minutes -
How to Perform in the new G3 SEC Examinations | Learner’s Guide Vol 0059 | Mathematics: The First 10 Minutes of K310
17–25 minutes -
How to Perform in the new G2 SEC Examinations | Learner’s Guide Vol 0095 | Science: Scale Translation — Connect Particles, Cells and Local Measurements to Whole-System Results
36–54 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.
