eduKate Sengkang Learning Estate Hub | 20 Upgrade Routes

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.

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 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.