KS4 – MYP 4–5 Mathematics | Relations and Functions

Original 15-page Mathematics Extended booklet by Taylan Çeltik, supplied as a downloadable PDF. “Back to the beginning — Relations and functions” develops function notation, mapping diagrams, domain and range, composite functions and inverse functions. Original definitions, examples, diagrams, questions and working spaces are preserved. The cover retains its original G11 label; the resource is used here for the channel’s extended mathematics sequence. The lesson recording uses an earlier IGCSE Booklet 18 edition, so follow the matching question text rather than expecting identical booklet labels. The PDF contains the verified YouTube lesson link.