For Mathematics on eduKateSG, start with the Mathematics Learning Hub. It is the main route into Primary Mathematics, PSLE, Secondary Mathematics, Additional Mathematics, and more advanced mathematical learning across the site.
Choose the next page by the learner’s present level and the earliest difficulty that is actually limiting progress. A weak score does not always mean the current chapter is the real problem; algebra, number sense, symbolic fluency, interpretation, or earlier prerequisite knowledge may be the leak. When the cause is unclear, diagnosing the earliest weak link is usually more useful than collecting more worksheets.
For diagnosis and repair, use the Diagnostics & Recovery Hub. For the wider subject map, return to the eduKateSG Learning Hubs.