This 2015 "iNZight" edition covers nine key Achievement Standards 3.2, 3.8, 3.9, 3.10, 3.11, 3.12, 3.13, 3.14 and 3.15. It features brief notes, explanations, worked examples and exercises with fully worked answers. Use throughout the year to support classroom work, to help with internal assessments and to revise for end-of-year exams.