MYP 3 second edition has been designed and written for the IB Middle Years Programme (MYP) Mathematics framework. This book may also be used as a general textbook at about 8th Grade (or Year 8) level in classes where students are expected to complete a rigorous course in mathematics. The textbook and interactive software provide an engaging and structured package, allowing students to explore and develop their confidence in mathematics. The book contains a variety of exercises, ranging from basic to advanced, to cater for a range of student abilities and interests. The material is presented in a clear, easy-to-follow format, free from unnecessary distractions, while every effort has been made to contextualise questions so that students can relate concepts to everyday use. Each chapter begins with an Opening Problem, offering an insight into the application of the mathematics that will be studied in the chapter. Important information and key notes are highlighted, while worked examples provide step-by-step instructions with concise and relevant explanations. Discussions, Activities, Investigations, Puzzles, and Research exercises are used throughout the chapters to develop understanding, problem solving, and reasoning, within an interactive environment. This product has been developed independently from and is not endorsed by the International Baccalaureate Organization. International Baccalaureate, Baccalaureat International, Bachillerato Internacional and IB are registered trademarks owned by the International Baccalaureate Organization.