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 to Learn Basic English (Chinese Edition) | Start Here | 零基础英语入门
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.001 | Start With the Most Useful Words | 先学最有用的单词
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.002 | Learn Meaning, Sound and Spelling Together | 意思、发音和拼写一起学
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.003 | Learn Words in Phrases, Not Alone | 单词要放进短语和句子里
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.004 | Remember Words With Retrieval and Spaced Review | 用回忆和间隔复习记住单词
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.005 | People and Family Words | 人与家庭英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.006 | Home and Everyday Objects | 家与日常物品英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.007 | Food and Drink | 食物与饮料英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.008 | Core Action Verbs | 核心动作动词
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.009 | Basic Adjectives and Opposites | 基础形容词与反义词
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.010 | Numbers, Time and Days | 数字、时间与星期
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.011 | Question Words | 英语疑问词
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.012 | Places and Transport | 地点与交通英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.013 | Body and Health Words | 身体与健康英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.014 | School and Work Words | 学习与工作英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.015 | Common Verb Phrases | 常用动词短语
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.016 | Word Families for Beginners | 初级词族
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.017 | Clothes and Colours | 衣服与颜色英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.018 | Weather and Seasons | 天气与季节英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.019 | Shopping and Money | 购物与金钱英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.020 | Technology and Communication | 科技与通讯英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.021 | Hobbies and Free Time | 兴趣爱好与休闲英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.022 | Nature and Outdoors | 自然与户外英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.023 | Everyday Polite Words | 日常礼貌英语词汇与短语
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.024 | Signs, Notices and Simple Instructions | 标识、通知与简单指令英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.025 | Housework and Tidying Up | 家务与整理英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.026 | Feelings and Everyday Needs | 感受与日常需要英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.027 | Materials, Shapes and Sizes | 材料形状与大小英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.028 | Using a Learner’s Dictionary | 零基础英语词典查词方法
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.029 | Pronouns and Possessive Words | 人称代词与所属词
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.030 | Articles and Quantity Words | 冠词与数量词
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.031 | Prepositions of Place, Time and Movement | 地点、时间与方向介词
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.032 | Connecting and Sequence Words | 连接词与顺序词
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.033 | Frequency and Habit Words | 频率与习惯英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.034 | Degree and Intensity Words | 程度与强度英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.035 | Ability, Permission and Possibility Words | 能力、许可与可能性英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.036 | Comparison and Difference Words | 比较与差异英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.037 | Negation and Limiting Words | 否定与限制英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.038 | Time Reference Words | 时间指示英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.039 | Adverbs of Manner and Speed | 方式与速度英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.040 | Thinking, Knowing and Memory Words | 思考、理解与记忆英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.041 | Animals and Pets | 动物与宠物英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.042 | Kitchens, Meals and Cooking | 厨房、餐食与烹饪英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.043 | Hotels and Accommodation | 酒店与住宿英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.044 | Restaurants and Eating Out | 餐馆与外出用餐英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.045 | Holidays and Vacation Travel | 假期与旅行英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.046 | Airports and Flights | 机场与航班英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.047 | Celebrations, Parties and Special Days | 庆祝、聚会与特别日子英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.048 | Accessories and Personal Belongings | 配饰与随身物品英语词汇
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How to Learn Basic English Vocabulary (Chinese Edition) | Lesson No.049 | Cinema, Television and Entertainment | 电影、电视与娱乐英语词汇
Browse every published Post
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PSLE Science Reality Lab Vol No.006 | “It Happened on Camera” — Does a Demonstration Test Why It Happened?
9–14 minutes -
The Tutor Handbook Vol No.0034 | The Archive — How a Tutor Preserves Useful Learning History Without Letting Old Labels Control the Future
29–43 minutes -
PSLE Science Reality Lab Vol No.005 | “95% Agree” — Who Was Actually Asked?
12–17 minutes -
PSLE Science Reality Lab Vol No.004 | “X Causes Y” — What Evidence Would a Causal Headline Need?
11–16 minutes -
PSLE Science Reality Lab Vol No.003 | “It Worked for Me” — Why a Testimonial Is Not Yet a Fair Test
11–17 minutes -
PSLE Science Reality Lab Vol No.002 | “Twice as Effective” — Effective Compared With What?
15–23 minutes -
The Tutor Handbook Vol No.0033 | The Retirement — How a Tutor Decides When a Known Fragility No Longer Deserves Special Monitoring
29–43 minutes -
PSLE Science Reality Lab Vol No.001 | “Scientifically Proven” — What Was Actually Tested?
17–26 minutes -
The Tutor Handbook Vol No.0032 | The Watchlist — How a Tutor Monitors a Known Fragility Without Making It the Centre of Every Lesson
30–45 minutes -
The Tutor Handbook Vol No.0031 | The New Baseline — How a Tutor Rebuilds the Learner Model After a Weak Link Has Needed Repair Twice
30–45 minutes -
PSLE Science Reasoning Casebook Case No.001 | The Cooling Cup Mystery — When the First Result Is Not Enough
13–20 minutes -
The Tutor Handbook Vol No.0030 | The Second Repair — How a Tutor Rebuilds a Reopened Weak Link Without Automatically Repeating the First Intervention
30–46 minutes -
The Tutor Handbook Vol No.0029 | The Reopening — How a Tutor Decides When Maintenance Is No Longer Enough and a Weak Link Needs Full Repair Again
29–43 minutes -
The Tutor Handbook Vol No.0028 | The Maintenance — How a Tutor Keeps a Confirmed Gain Alive Without Returning to Full Repair
26–40 minutes -
The Tutor Handbook Vol No.0026 | The Breakthrough — How a Tutor Decides Whether a Sudden Leap Is a Real Phase Change or One Exceptional Performance
28–43 minutes -
How to Keep a PSLE Science Investigation Record That Preserves What Actually Happened
24–36 minutes -
The Tutor Handbook Vol No.0025 | The Plateau — How a Tutor Decides Whether Progress Has Stalled, Hidden or Shifted Into a New Bottleneck
31–47 minutes -
The Tutor Handbook Vol No.0024 | The Trend — How a Tutor Decides Whether Improvement Is Stable Across Several Papers
29–44 minutes -
The Tutor Handbook Vol No.0023 | The Second Full Paper — How a Tutor Decides Whether a Repair Survived Reintegration
26–39 minutes -
The Tutor Handbook Vol No.0022 | The Full Paper — How a Tutor Reads Whole-System Performance Without Losing the First Weak Link
27–41 minutes -
The Tutor Handbook Vol No.0021 | The Timed Set — How a Tutor Adds the Clock Without Confusing Speed With Learning
30–45 minutes -
The Tutor Handbook Vol No.0020 | The Mixed Set — How a Tutor Tests Method Selection When No Topic Label Announces the Answer
28–42 minutes -
The Tutor Handbook Vol No.0019 | The Changed Question — How a Tutor Tests Whether Learning Travels When the Surface Changes
29–43 minutes -
The Tutor Handbook Vol No.0018 | The Reattempt — How a Tutor Uses a Second Attempt to Separate Recognition, Repair and Real Learning
27–40 minutes -
The Tutor Handbook Vol No.0017 | The Return — What a Tutor Learns When the Student Comes Back With Evidence From Outside the Lesson
31–46 minutes -
How to Make a PSLE Science Observation Drawing That Records What You See Without Drawing What You Expect
35–53 minutes -
The Tutor Handbook Vol No.0016 | The Handover — How a Tutor Ends Each Lesson So the Learner Can Carry the Next Move Alone
34–50 minutes -
The Tutor Handbook Vol No.0015 | The Learning Contract — How Tutor and Student Divide Responsibility Without Confusing Support With Control
29–44 minutes -
How to Compare Two Worked PSLE Science Examples to Find the Reasoning Pattern They Share
25–37 minutes -
The Tutor Handbook Vol No.0014 | The Student Review — How a Tutor Gives the Learner a Voice Without Handing Over Every Decision
32–48 minutes -
How to Tell Productive Struggle From Being Truly Stuck in PSLE Science Practice
13–19 minutes -
How to Space PSLE Science Retrieval So Learning Survives Beyond the Same Day
13–19 minutes -
The Tutor Handbook Vol No.0013 | The Parent Review — How a Tutor Explains Progress, Uncertainty and the Next Decision Without Turning the Child Into a Score
35–52 minutes -
How to Read Passive Sentences in PSLE Science Without Reversing What Acts on What
13–20 minutes -
How to Read a PSLE Science Cutaway Diagram Without Treating the Cut Surface as a Real Opening
14–21 minutes -
How to Tell “How Often” From “How Long” in PSLE Science Data
14–21 minutes -
How to Keep Your Prediction From Changing What You Record in PSLE Science
22–34 minutes -
The Tutor Handbook Vol No.0012 | The First Review — How a Tutor Decides Whether to Continue, Advance, Reclassify or Stop a Learning Route
25–38 minutes -
How to Test a PSLE Science Explanation by Asking What Would Happen If One Causal Link Were Removed
14–21 minutes -
How to Work Out What a PSLE Science Investigation Actually Measured When the Outcome Word Is Broad
13–19 minutes -
How to Generate More Than One Valid Method for a PSLE Science Investigation
9–14 minutes -
How to Build a Simple Scientific Model From PSLE Science Evidence and Test What It Predicts
11–17 minutes -
The Tutor Handbook Vol No.0011 | The First Month — How Repeated Lessons Turn Early Hypotheses Into a Stable Teaching Route
27–41 minutes -
How to Use PSLE Science Flashcards to Train Reasoning Instead of Reciting Definitions
23–35 minutes -
How to Use PSLE Science Mnemonics Without Letting the Memory Trick Replace the Science
13–20 minutes -
How to Learn From a PSLE Science Teacher Correction Without Turning It Into a Magic Keyword Rule
10–15 minutes -
How to Use PSLE Science Answer Frameworks Without Letting the Template Replace the Science
12–18 minutes -
The Tutor Handbook Vol No.0010 | The Second Lesson — Test the First Hypothesis Before Turning It Into a Long-Term Plan
28–42 minutes -
The Tutor Handbook Vol No.0009 | The First Lesson — What a Tutor Should Learn About the Student Before Trying to Teach Too Much
31–47 minutes -
The Tutor Handbook Vol No.0008 | Tutor–Student Fit — Match the Right Tutor Function to the Learner’s Actual Condition
30–45 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.
