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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How the Subjunctive and Irrealis Forms Express Demands, Recommendations and Unreal Situations | English Learning Guide
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How Theme and Motif Build Larger Meaning Across a Text | English Tuition Sengkang
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How Time Delays Change Cause-and-Effect Reasoning in Science | Science Tuition Sengkang
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How Time Order, Flashback and Foreshadowing Shape Narrative Meaning | English Tuition Sengkang
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How to Check Homework Without Doing It
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How to Choose a Tuition Centre in Sengkang: 12 Questions to Ask
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How to Choose English Tuition in Sengkang | 7 Questions That Reveal the Learning System
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How to Choose Science Tuition in Sengkang | 7 Questions That Reveal Scientific Learning
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How to Choose Secondary 1 English Tuition in Sengkang | 7 Checks
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How to Learn Advanced English (Chinese Edition) | Lesson No.001 | Build a C1–C2 Learning System | 第001课:建立 C1–C2 高级英语学习系统
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How to Learn Advanced English (Chinese Edition) | Lesson No.002 | Master Collocation, Register and Precision | 第002课:掌握搭配、语域与精准表达
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How to Learn Advanced English (Chinese Edition) | Lesson No.003 | Stop Translating Chinese Grammar into English | 第003课:停止把中文语法直译成英语
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How to Learn Advanced English (Chinese Edition) | Lesson No.004 | Read Deeply, Think Clearly, Write Precisely | 第004课:深度阅读、清晰思考、精准写作
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How to Learn Advanced English (Chinese Edition) | Lesson No.005 | Hear Structure, Stance and Meaning in Fast English | 第005课:听懂快速英语中的结构、立场与真正含义
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How to Learn Advanced English (Chinese Edition) | Lesson No.006 | Speak Without Translating in Real Time | 第006课:实时英语表达:不用先翻译再开口
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How to Learn Advanced English (Chinese Edition) | Lesson No.007 | Speak Clearly With Intelligibility, Stress, Rhythm and Intonation | 第007课:用可懂度、重音、节奏与语调说清英语
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How to Learn Advanced English (Chinese Edition) | Lesson No.008 | Lead Complex Academic and Professional Discussions | 第008课:驾驭学术与专业英语讨论
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How to Learn Advanced English (Chinese Edition) | Lesson No.009 | Write Evidence-Based Reports and Recommendations | 第009课:用证据写好英语报告与建议
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How to Learn Advanced English (Chinese Edition) | Lesson No.010 | Adapt Complex English for Different Audiences | 第010课:把复杂英语准确讲给不同受众
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How to Learn Advanced English (Chinese Edition) | Lesson No.011 | Synthesize Multiple Sources Without Losing Their Differences | 第011课:综合多来源而不抹掉分歧
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How to Learn Advanced English (Chinese Edition) | Lesson No.012 | Build a Literature Review as a Scholarly Conversation | 第012课:把文献综述写成学术对话
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How to Learn Advanced English (Chinese Edition) | Lesson No.013 | Build an Academic Argument That Survives Counterevidence | 第013课:构建经得住反证的学术论证
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How to Learn Advanced English (Chinese Edition) | Lesson No.014 | Calibrate Certainty Without Becoming Vague | 第014课:精准控制学术英语中的确定程度
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How to Learn Advanced English (Chinese Edition) | Lesson No.015 | Keep Methods, Results and Discussion Doing Different Jobs | 第015课:让方法、结果与讨论各司其职
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How to Learn Advanced English (Chinese Edition) | Lesson No.016 | Write an Abstract That Compresses a Study Without Distorting It | 第016课:把完整研究压缩成不失真的摘要
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How to Learn Advanced English (Chinese Edition) | Lesson No.017 | Write a Research Introduction That Makes the Question Necessary | 第017课:把研究引言写到问题自然变得必要
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How to Learn Advanced English (Chinese Edition) | Lesson No.018 | Write Methods for Reproducibility Without Writing a Lab Diary | 第018课:把研究方法写到可检查,而不是写成流水账
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How to Learn Advanced English (Chinese Edition) | Lesson No.019 | Write Results That Reveal the Pattern Without Arguing Ahead of the Evidence | 第019课:把研究结果写清楚,而不是提前替证据下结论
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How to Learn Advanced English (Chinese Edition) | Lesson No.020 | Write a Discussion That Explains Without Overclaiming | 第020课:把讨论写成解释,而不是把结果说得更大
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How to Learn Advanced English (Chinese Edition) | Lesson No.021 | Write a Conclusion That Closes the Argument Without Making It Bigger | 第021课:把研究结论写到真正收束,而不是最后再扩大主张
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How to Learn Advanced English (Chinese Edition) | Lesson No.022 | Write a Full Research Paper Whose Sections Agree With One Another | 第022课:让整篇研究论文各部分彼此一致
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How to Learn Advanced English (Chinese Edition) | Lesson No.023 | Revise a Research Paper After Peer Review Without Breaking Its Logic | 第023课:根据 Peer Review 修订论文,但不要把整篇逻辑修坏
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How to Learn Advanced English (Chinese Edition) | Lesson No.024 | Write a Peer Review Report That Improves the Paper Without Rewriting It as Your Own | 第024课:写好 Peer Review:严格、具体、可执行,但不要把别人的论文改成自己的
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How to Learn Advanced English (Chinese Edition) | Lesson No.025 | Give a Research Presentation and Defend It Under Questions Without Overclaiming | 第025课:做研究汇报并在问答中守住证据边界
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How to Learn Advanced English (Chinese Edition) | Start Here | 高级英语进阶学习
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How to Learn Advanced English Vocabulary (Chinese Edition) | Lesson No.001 | Build Lexical Depth Before Chasing Rare Words | 第001课:先建立词汇深度,再追求难词
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How to Learn Advanced English Vocabulary (Chinese Edition) | Lesson No.002 | Turn Known Words into Word Families and Phrase Networks | 第002课:把熟词扩展成词族与词块网络
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How to Learn Advanced English Vocabulary (Chinese Edition) | Lesson No.003 | Break the One-to-One Translation Habit | 第003课:打破“一词一译”的习惯
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How to Learn Advanced English Vocabulary (Chinese Edition) | Lesson No.004 | Move from Correct English to Natural English | 第004课:从“正确英语”走向“自然英语”
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How to Learn Advanced English Vocabulary (Chinese Edition) | Lesson No.005 | Turn Passive Vocabulary into Active Vocabulary | 第005课:把被动词汇变成主动词汇
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How to Learn Advanced English Vocabulary (Chinese Edition) | Lesson No.006 | Master Near-Synonyms, Shades of Meaning and Lexical Precision | 第006课:掌握近义词、细微语义与精准选词
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How to Learn Advanced English Vocabulary (Chinese Edition) | Lesson No.007 | Build Academic and Professional Vocabulary by Function, Not Word Lists | 第007课:按功能建立学术与专业词汇
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How to Learn Advanced English Vocabulary (Chinese Edition) | Lesson No.008 | Infer Unknown Vocabulary from Context, Then Verify It | 第008课:从上下文推断陌生词,再验证词义
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How to Learn Advanced English Vocabulary (Chinese Edition) | Lesson No.009 | Use Corpus Evidence to Check Natural Word Choice | 第009课:用语料库证据验证自然选词
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How to Learn Advanced English Vocabulary (Chinese Edition) | Lesson No.010 | Master Advanced Phrasal Verbs Through Meaning, Word Order and Register | 第010课:掌握高级短语动词的词义、语序与语域
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How to Learn Advanced English Vocabulary (Chinese Edition) | Lesson No.011 | Master Dependent Prepositions and Complement Patterns | 第011课:掌握固定介词与补语结构
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How to Learn Advanced English Vocabulary (Chinese Edition) | Lesson No.012 | Master Idioms, Fixed Expressions and Figurative Meaning Without Overusing Them | 第012课:掌握习语、固定表达与比喻义,但不过度使用
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How to Learn Advanced English Vocabulary (Chinese Edition) | Lesson No.013 | Master Polysemy and Familiar Words with New Meanings | 第013课:掌握多义词与熟词新义
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How to Learn Advanced English Vocabulary (Chinese Edition) | Lesson No.014 | Master Pronunciation, Word Stress and Spoken Word Recognition | 第014课:掌握发音、单词重音与听觉词汇识别
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How to Learn Advanced English Vocabulary (Chinese Edition) | Lesson No.015 | Master False Friends, Confusable Words and Deceptive Similarity | 第015课:掌握假朋友词、易混词与误导性相似
Browse every published Post
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How to Choose a Useful Range and Spacing of Test Conditions in a PSLE Science Investigation
20–30 minutes -
How to Repair a PSLE Science Misconception by Replacing the Wrong Mechanism, Not Memorising an Exception
11–17 minutes -
How to Solve “Which Cannot Be Concluded?” PSLE Science Questions Without Reversing the Logic
11–17 minutes -
How to Read a PSLE Science Measurement That Hits the End of the Scale Without Treating the Limit as the True Value
12–19 minutes -
How to Read Top, Side and Cross-Section Views in PSLE Science as the Same Object
10–15 minutes -
How to Read the “Best” Tested Condition in PSLE Science Without Pretending It Is the True Optimum
15–22 minutes -
How to Improve Understanding | Meaning, Structure, Explanation and Transfer
17–25 minutes -
How to Diagnose a PSLE Science Mistake That Appears Only Under Time Pressure
13–20 minutes -
How to Compare Two PSLE Science Graphs With Different Scales Without Trusting Which Line Looks Steeper
11–17 minutes -
How to Improve a PSLE Science Investigation Without Changing the Scientific Question
13–19 minutes -
How to Improve Motivation | Value, Agency, Progress and the Return to Effort
17–26 minutes -
How to Read Unequal Time Intervals in PSLE Science Without Confusing Bigger Change With Faster Change
9–14 minutes -
How to Know When to Stop Practising a PSLE Science Concept and Move It to Delayed Review
11–16 minutes -
How to Choose the Decisive Evidence for a PSLE Science Answer Without Copying the Whole Table
10–14 minutes -
How to Define What Counts as an Observation in a PSLE Science Investigation
8–12 minutes -
How to Know When PSLE Science Does Not Give Enough Information to Decide
11–16 minutes -
How to Answer “Why Did This Not Happen?” in PSLE Science by Finding the Missing or Blocking Condition
14–21 minutes -
How to Spot When the Order of Testing Changes a PSLE Science Investigation
12–18 minutes -
How to Read a Rotated or Flipped PSLE Science Diagram Without Letting Orientation Change the Science
12–18 minutes -
How to Compare PSLE Science Counts When the Groups Are Different Sizes Without Letting the Bigger Group Win Automatically
11–17 minutes -
How to Read a Delayed Response in PSLE Science Without Assuming the Cause Started Late
12–18 minutes -
Top 10 Comparison Skills Worth Learning
18–27 minutes -
How Explanation Works in Teaching | Making Invisible Structure Visible Without Doing the Thinking for the Learner
20–30 minutes -
How to Improve Decision Making | Options, Evidence, Trade-Offs and Better Choices
16–24 minutes -
How to Decide Which PSLE Science Investigation Gives Stronger Evidence for a Claim
16–23 minutes -
How to Read a PSLE Science Graph Whose Axis Does Not Start at Zero Without Exaggerating the Difference
11–16 minutes -
How to Tell a Data Pattern From a Scientific Mechanism in PSLE Science
8–13 minutes -
How to Use a Scientific Model in PSLE Science Without Mistaking the Model for Reality
10–15 minutes -
How to Choose Measurement Intervals in a PSLE Science Investigation Without Missing the Pattern
11–16 minutes -
How to Read a PSLE Science Diagram as a Snapshot, a Sequence or a Process
10–15 minutes -
How to Use Confidence Ratings in PSLE Science Practice Without Mistaking Confidence for Understanding
17–26 minutes -
How Far Can a PSLE Science Conclusion Travel Beyond the Things That Were Actually Tested?
10–15 minutes -
How to Predict Beyond the Tested Range in PSLE Science Without Pretending the Trend Must Continue
8–13 minutes -
How to Interleave PSLE Science Revision Without Turning Mixed Practice Into Random Practice
16–23 minutes -
How to Tell “Happened Before” From “Caused” in PSLE Science
11–17 minutes -
How to Find the First Broken Link in a PSLE Science Explanation and Repair From There
14–21 minutes -
How to Decide Whether a PSLE Science Investigation Needs One Final Measurement or Repeated Measurements Over Time
15–22 minutes -
How to Spot When the Measuring Method Changes the PSLE Science Result
13–20 minutes -
Top 10 Pattern Recognition Skills Worth Learning
16–25 minutes -
How to Read a PSLE Science Diagram That Is Not Drawn to Scale Without Treating Size as Data
14–21 minutes -
How to Read PSLE Science When a Smaller Number Means a Bigger Effect
14–21 minutes -
How to Practise PSLE Science in Both Directions: Concept to Example and Example to Concept
15–23 minutes -
How to Decide Whether a PSLE Science Investigation Needs Repeated Trials or More Similar Specimens
16–23 minutes -
How to Read Qualitative PSLE Science Results Without Inventing Numbers
13–19 minutes -
How to Improve Critical Thinking | Claims, Evidence, Alternatives and Better Judgement
20–30 minutes -
Top 10 Sequencing Skills Worth Learning
22–32 minutes -
How to Read “No Evidence” in PSLE Science Without Concluding “No Effect”
9–13 minutes -
How to Identify an Unlabelled Part in a PSLE Science Diagram Without Guessing From Shape
12–18 minutes -
How to Choose the Right Comparison in PSLE Science: Before–After or Set-Up–to–Set-Up?
11–16 minutes -
How to Tell Function From Mechanism in PSLE Science So You Answer the Question Being Asked
11–16 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.
