Exam Board: AQA Level: AS/A-level Subject: Computer Science First Teaching: September 2015 First Exam: June 2016 This title has been approved by AQA for use with the AS and A-level AQA Computer Science specifications. AQA A-level Computer Science gives students the chance to think creatively and progress through the AQA AS and A-level Computer Science specifications. Detailed coverage of the specifications will enrich understanding of the fundamental principles of computing, whilst a range of activities help to develop the programming skills and computational thinking skills at A-level and beyond. - Enables students to build a thorough understanding of the fundamental principles in the AQA AS and A-Level Computer Science specifications, with detailed coverage of programming, algorithms, data structures and representation, systems, databases and networks, uses and consequences. - Helps to tackle the various demands of the course confidently, with advice and support for programming and theoretical assessments and the problem-solving or investigative project at A-level. - Develops the programming and computational thinking skills for A-level and beyond - frequent coding and question practice will help students apply their knowledge of the principles of computer science, and design, program and evaluate problem-solving computer systems. Bob Reeves is an experienced teacher with examining experience, and well-respected author of resources for Computing and ICT across the curriculum.

Matching the latest AQA course specifications, this student's book provides coverage and support through a variety of printed and electronic media.

This new student book is written by the author of the best-selling textbook Understanding Computer Science. Fully in line with the AQA AS Computing specification and thoroughly checked by an AQA examiner.

Exam Board: AQA Level: AS/A-level Subject: Computer Science First Teaching: September 2015 First Exam: June 2016 This title has been approved by AQA for use with the AS and A-level AQA Computer Science specifications. AQA A-level Computer Science gives students the chance to think creatively and progress through the AQA AS and A-level Computer Science specifications. Detailed coverage of the specifications will enrich understanding of the fundamental principles of computing, whilst a range of activities help to develop the programming skills and computational thinking skills at A-level and beyond. - Enables students to build a thorough understanding of the fundamental principles in the AQA AS and A-Level Computer Science specifications, with detailed coverage of programming, algorithms, data structures and representation, systems, databases and networks, uses and consequences. - Helps to tackle the various demands of the course confidently, with advice and support for programming and theoretical assessments and the problem-solving or investigative project at A-level. - Develops the programming and computational thinking skills for A-level and beyond - frequent coding and question practice will help students apply their knowledge of the principles of computer science, and design, program and evaluate problem-solving computer systems. Bob Reeves is an experienced teacher with examining experience, and well-respected author of resources for Computing and ICT across the curriculum.

This glossary of computing terms is the first glossary to be written specifically for A Level Computing students, although it would also be of use to other students of computer science.

This textbook covers sections 4.1 to 4.4 of AQA's A Level Computer Science specification for first teaching from September 2015. These sections cover the fundamentals of programming, data structures, algorithms, and the theory of computation. Fundamentals of programming: data types, programming concepts, arithmetic operations, relational operators, Boolean operations, constants and varibale, string-handling, random number generatio, exception handling, subroutines, parameters of subroutines, returning a value/values from a subroutine, local variables, global variables, role of stack frames in subroutine calls, recursive techniques, procedural-oriented programming, object-oriented programming. Fundamentals of data structures: data structures, single- and multi-dimensional arrays, fileds, records and files, abstract data types, queues, stacks, graphs, trees, hash tables, dictionaries, vectors. Fundamentals of algorithms: graph traversal (breadth-first, depth-first), tree-traversal (pre-order, in-order, post-order), Reverse Polish, searching algorithms (linear search, binary search, binary tree search), sorting algorithms(bubble sort, merge sort), optimisation algorithms (Dijkstra's shortest path algorithm). Theory of computation: abstraction and automation, following and writing algorithms, information hiding, procedural abstraction, functional abstraction, data abstraction, problem abstraction/reduction, decomposition, composition, automation, regular languages, finitest state machine with and without output, maths for regular expressions, regular expressions, regular language, context-free languages (BNF, syntax diagrams), classification of algorithms, maths for understanding Big-O notation, order of complexity, limits of computation, classification of algortihmic problems, computatble and non-computatable problems, halting problem, Turing machine.

Exam Board: AQA Level: AS/A-level Subject: Chemistry First Teaching: September 2015 First Exam: June 2017 AQA Approved Help students to apply and develop their knowledge, progressing from basic concepts to more complicated Chemistry, with worked examples, practical activities and mathematical support throughout. - Provides support for all 12 required practicals with activities that introduce practical work and other experimental investigations in Chemistry - Offers detailed examples to help students get to grips with difficult concepts such as Physical Chemistry calculations - Mathematical skills are integrated throughout the book and all summarised in one chapter for easy reference - Allows you to easily measure progression with Differentiated End of Topic questions and Test Yourself Questions - Develops understanding with free online access to 'Test yourself' answers and an extended glossary.