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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Student/Studying Interface Learning Manual: Voice-Control Study Interface | Saying the Right Command Is Not Enough If the Wrong Control Activates
5–7 minutes -
MindOS Learning Manual: Retroactive-Interference State | New Learning Can Make Older Learning Harder to Retrieve
10–15 minutes -
Student/Studying Interface Learning Manual: Refreshable-Braille Interface | Reading One Line at a Time Should Not Make the Document Lose Its Structure
5–7 minutes -
Bolt Performance Calibration — A Superscore Can Combine Your Best Sections Without Representing Any Single Test Sitting
9–13 minutes -
Student/Studying Interface Learning Manual: Study-Chat Interface | A Useful Answer Can Disappear Above Fifty New Messages
4–7 minutes -
Bolt Performance Calibration — Negative Marking Can Measure Risk Strategy as Well as Knowledge
9–13 minutes -
Student/Studying Interface Learning Manual: Handwriting-Recognition Interface | The Ink Can Be Right and the Converted Text Wrong
5–7 minutes -
Student/Studying Interface Learning Manual: Slide-Deck Interface | A Presentation Can Look Complete While Hiding the Explanation in Notes, Builds or Missing Context
6–9 minutes -
Student/Studying Interface Learning Manual: Computer Algebra System Interface | A Symbolic Answer Can Be Correct and Still Hide the Conditions That Make It True
5–7 minutes -
Student/Studying Interface Learning Manual: Digital Measurement-Tool Interface | A Ruler or Protractor on Screen Can Be Perfectly Aligned and Still Measure the Wrong Thing
5–8 minutes -
Bolt Performance Calibration — Two Assessments Can Correlate Strongly and Still Disagree About Individual Scores
8–12 minutes -
Student/Studying Interface Learning Manual: Interactive-Timeline Interface | Seeing Events in Order Is Not the Same as Understanding Which Time State You Are Viewing
4–6 minutes -
Bolt Performance Calibration — A Statistically Significant Result Can Still Be Too Small to Matter Educationally
8–12 minutes -
Student/Studying Interface Learning Manual: Virtual-Microscope Interface | More Magnification Can Show Less of What Matters
5–7 minutes -
Bolt Performance Calibration — Scores Improved After the Programme. Would They Have Improved Anyway?
8–12 minutes -
Student/Studying Interface Learning Manual: Access-Permission Interface | The Right Resource Is Still Unusable If the Learner Cannot Open It
5–8 minutes -
Bolt Performance Calibration — Three Hundred Students in Six Classes Are Not Three Hundred Independent Experiments
8–12 minutes -
Bolt Performance Calibration — If You Measure Enough Outcomes, One Success Can Appear by Chance
7–11 minutes -
Bolt Performance Calibration — If Two Groups Start Different, the Final Difference May Not Be the Intervention
8–12 minutes -
Student/Studying Interface Learning Manual: File-Format Conversion Interface | The Same Work Can Change When It Becomes PDF, DOCX, CSV or an Image
7–10 minutes -
MindOS Learning Manual: Incubation State | Stepping Away Can Help a Stuck Problem—But Only After the Problem Has Been Loaded
9–14 minutes -
Student/Studying Interface Learning Manual: 3D-Model Interface | Rotating the Object Can Reveal Structure and Hide Orientation
6–9 minutes -
Student/Studying Interface Learning Manual: Sensor & Data-Logger Interface | A Precise Reading Is Not Useful If the Learner Does Not Know What Was Measured
5–8 minutes -
MindOS Learning Manual: Collaborative-Inhibition State | A Group Can Recall Less Than Its Members Would Recall Separately
9–14 minutes -
Student/Studying Interface Learning Manual: Interactive-Map Interface | A Map Can Be Accurate and Still Answer the Wrong Question
6–9 minutes -
MindOS Learning Manual: Pretraining State | Learn the Parts Before the System Starts Moving
9–13 minutes -
Student/Studying Interface Learning Manual: Code-Execution Interface | Running Without Knowing What State Ran Can Make Correct Code Look Wrong
7–10 minutes -
MindOS Learning Manual: Rereading State | Reading It Again Can Help—But Easier Reading Is Not the Same as Better Learning
13–19 minutes -
Bolt Performance Calibration — If Students Saw the Questions Before the Test, the Score Is Measuring a Different Performance
7–11 minutes -
Bolt Performance Calibration — A Growth Score Can Be Noisier Than Either Test It Came From
7–11 minutes -
Bolt Performance Calibration — If the Control Group Starts Copying the Intervention, the Comparison Stops Being Clean
7–11 minutes -
Bolt Performance Calibration — If the Missing Students Are Different, the Intervention Effect Can Change
8–12 minutes -
Bolt Performance Calibration — When Students Choose Different Questions, the Same Mark Can Come From Different Test Forms
9–13 minutes -
Student/Studying Interface Learning Manual: Graphing-Tool Interface | A Correct Equation Can Look Wrong When the Window Is Wrong
8–12 minutes -
Student/Studying Interface Learning Manual: Audio-Description Interface | Hearing the Dialogue Is Not the Same as Receiving the Visual Information
7–11 minutes -
Bolt Performance Calibration — A Mathematics or Science Test Can Become Partly a Language Test
9–14 minutes -
Student/Studying Interface Learning Manual: Spreadsheet Interface | A Correct Number Can Become Meaningless When Its Row, Column or Formula State Is Lost
8–12 minutes -
Bolt Performance Calibration — Two Students Can Answer Different Adaptive-Test Questions and Still Be on the Same Score Scale
9–14 minutes -
MindOS Learning Manual: Cue-Overload State | One Hint Can Point to Too Many Memories
8–12 minutes -
Student/Studying Interface Learning Manual: Keyboard-Focus Interface | The Cursor Can Move Even When the Learner Does Not Know What Will Activate
7–10 minutes -
Bolt Performance Calibration — A Raw Score and a Scaled Score Are Not the Same Kind of Number
8–12 minutes -
Student/Studying Interface Learning Manual: Screen-Reader Navigation Interface | Hearing Every Word Is Not the Same as Knowing Where You Are
7–10 minutes -
Bolt Performance Calibration — A Correct Multiple-Choice Answer Does Not Always Mean the Student Knew It
8–12 minutes -
Bolt Performance Calibration — A Peer Grade Is Evidence, Not a Substitute Teacher
7–11 minutes -
MindOS Learning Manual: Self-Reference Encoding State | Making It About You Can Make It Easier to Remember—But That Is Not Yet Understanding
10–16 minutes -
Bolt Performance Calibration — A Wrong Final Answer Can Still Contain Correct Performance Evidence
7–11 minutes -
Student/Studying Interface Learning Manual: Digital-Form Interface | Knowing the Answer Is Not Enough If It Goes Into the Wrong Field
7–11 minutes -
Bolt Performance Calibration — A Group Grade Is Not Automatically an Individual Capability Score
7–11 minutes -
Student/Studying Interface Learning Manual: Equation-Editor Interface | A Correct Idea Can Become a Wrong Equation When the Input Tool Changes the Structure
6–9 minutes -
MindOS Learning Manual: Forward-Testing State | Testing Earlier Material Can Improve What You Learn Next
10–14 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.
