This 2nd edition book is written for the two-year Math SL Diploma course. It follows the syllabus closely. Plenty of worked examples with step-by-step instructions, well-graded problems, and revision exercises, and many Investigations suitable for portfolio assignments. IB notation throughout. Answers to each question and a detailed index are at the back of the book. The book is accompanied by an interactive Student CD. The CD has active links to spreadsheets, graphing and geometry software, and printable instructions for TI and Casio graphics calculators. It also offers Background Knowledge as printable pages if students need it. The CD has the full text of the book so that students can keep the CD at home and the book at school. It is ideal for independent study and revision. The combination of textbook and interactive Student CD will foster a deeper understanding and appreciation of mathematical concepts.