If your revision folder still says MF26, check the booklet before using it for a current exam.
This article originally discussed MF26. The official SEAB MF27 list states that it is for use from 2025. Use the booklet specified for your examination year; the old MF26 artwork and notes are historical material. For the current resource, open our MF27 download page.
Check the Current List Before Revising
Do not assume a formula is present or absent because you remember an older booklet. Open the current list and mark the relevant sections in your personal study copy. Check the syllabus and exam instructions separately; an annotated revision copy is not permission to bring annotations into an examination.
Keep a Personal Practice Copy
Use your study copy to record where a formula is located, what each symbol means, and a worked example. Keep a separate list of results you need to understand or recall. The aim is to reduce searching while practising, not to fill every margin.
Learn the Conditions, Not Just the Formula
A formula is useful only when its assumptions match the question. For a non-zero infinite geometric series to converge, the common ratio must satisfy $|r|<1$, not merely $r<1$. Check domains, units and angle conventions before substituting values.
Practise With the Current Booklet
Attempt a question with your notes closed and the current booklet available. If you cannot start, identify whether the gap is selecting a method, interpreting a symbol, or performing the algebra. Then attempt a similar question. Our MF27 exam-strategy guide develops this practice routine.
Conclusion
Keep the useful study habits and replace the outdated reference.
Action Steps:
Check the official booklet for your exam year.
Choose one formula, explain its conditions, and apply it without copying a solution.