Start when the pattern appears, not only when marks collapse.
Most parents wait until the first poor Add Maths result before looking for help. That is understandable, but by then the student often feels defeated, which makes the repair slower. A better trigger is the pattern: algebra is getting heavier, the student can follow examples but cannot start a changed question, or functions and equations are beginning to feel disconnected from what came before.
For Cambridge Additional Mathematics 0606, readiness matters more than timing. The student needs enough algebra control to rearrange, factorise, substitute, interpret notation, and keep multi-step working organized. Tuition works best when it identifies the exact weak step and gives the student a method that holds before the syllabus becomes too dense to repair.

