The Pearson Edexcel GCSE (9-1) Computer Science Student Book is aligned to the 2020 specification, bringing Computer Science to life with real-world examples, and providing support for the new practical on-screen assessment. The Pearson Edexcel GCSE (9-1) Computer Science 2020 Student Book offers:  • plenty of practical activities for programming that follow the PRIMM pedagogy • real world examples and case studies of Computer Science in Action to help make the content relevant and inspiring to students • worked examples and activities using the PLS or ‘Programming Language Subset’ (Python) for a simple and comprehensive approach to programming • simplified content to make it as accessible as possible.   This Student Book also helps students with concise and productive exam preparation. This includes: • exam questions at the end of every section to consolidate knowledge • extensive Preparing for the exam material, including student answers and examiner commentary, plus example exam questions using only the Pearson Edexcel command words • data files to support the on-screen assessment, which can be found in the interactive scheme of work.