AQA approved. Covering AS and A-level Year 1 for the 2015 AQA specification, this Student Book combines the most comprehensive explanation with features that build skills in practical work, math, and evaluation. With a clear path of progress, it prepares students for the demands of A-level and beyond. Written by our expert authors for the 2015 AQA specification, this Student Book covers AS and A-level Year 1. This Student Book will prepare you for assessment with key ideas summaries and practice questions designed for the linear course; build your confidence in tackling the mathematical requirement with worked examples, targeted assignments, and a dedicated Maths Skills chapter; strengthen your practical skills with comprehensive Required Practical sections featuring step-by-step instructions, and advice about how best to avoid common errors; deepen your understanding of biology and equip you for further study using comprehensive explanations, skills-focused assignments, and inspiring real-life contexts; and extend your knowledge and skills with specially designed Stretch and Challenge questions.