Part of Collins' OCR Gateway series for GCSE Science, this Teacher's Guide provides material to teach and prepare students for GCSE Additional Science, written by examiners in consultation with OCR. It is fully integrated with Collins' OCR GCSE Additional Science Student Book.This book will provide you with complete teacher support for the OCR GCSE Additional Science specification, including: Lesson plans reflecting the low-to-high demand differentiation in Student Books allowing easy reference for planning Links to relevant activities (provided electronically) so you don't need to spend time searching for them Original and interesting suggestions for starter and plenary activities to stimulate students Comprehensive support for stress-free internal assessment Sample exam questions and end-of-unit testsplus answers to questions in the Student Books Extension and support material Guidance to practical investigations Technician's notes Links to other components in Collins' OCR GCSE Additional Sciences series as well as links to other Collins GCSE Science resources Fully differentiated lesson plans for B3, B4, C3, C4, P3, P4