This is general educational guidance. Check the linked official sources and your child’s school instructions for the applicable syllabus and assessment year.
Build a prerequisite chain
For each difficult topic, ask which earlier skills it depends on. Differentiation work may fail because of indices or algebraic expansion; trigonometric equations may fail because basic equation solving is insecure.
Practise the prerequisite separately, then return to the original question. This prevents the student from repeating an advanced topic while the true bottleneck remains.
Learn when a method applies
Beside each method, write its conditions and a contrasting example where it should not be used. This turns a formula sheet into a decision guide.
Ask the student to predict the shape, sign or rough result before calculating. The prediction provides a conceptual check on symbolic work.
Connect representations
Move between equations, graphs, tables and verbal descriptions. A graph is not only a final drawing; it can explain roots, turning points, rates of change and solution ranges.
When correcting a question, add a sketch or verbal explanation even if it was not required. The extra representation can reveal why the procedure works.
Use mixed practice and cumulative review
After a short same-topic set, mix in older material. Include a small number of straightforward questions so basic accuracy remains visible.
Keep an error log with the prerequisite, decision and execution cause. Reattempt a related item several days later without the original solution.