Pathfinder is a special edition of the GCSE course for SMP Interact. It is an enhanced version of the complete operational course used in pilot schools. Pathfinder is split into three tiers: Foundation, Intermediate and Higher and can be used with any GCSE syllabus. There are two pupils' books in each tier for each of the two years of GCSEs (years 10 and 11). Each pupils' book has an associated Teacher's Guide and Practice Book. The materials do not depend on use of SMP Interact at key stage 3.