Endorsed by Cambridge International Examinations, the Fourth Edition of the AS and A Level Biology Teacher's Resource contains helpful activities and guidance to support planning, delivery and assessment.The CD-ROM includes customisable detailed teaching guides, such as mapping grids for every topic, common misunderstandings and misconceptions, and ideas for in-class activities with additional advice for strecthing high acheivers and supporting struggling students. Cambridge International AS and A Level Biology Teacher's Resource CD-ROM (fourth edition) also provides practical activity worksheets including safety advice and teacher-specific guidance, homework sheets with corresponding marking schemes and worked answers to all questions in the coursebook. The resources are prepared with an international focus.