Maths Investigator is a secret spy agency whose mission is to make maths fun and exciting. The series has been extensively trialled and developed to offer schools a fresh and exciting way to combine the content and structure of the 2006 Mathematics Framework with the principles of the Primary Strategy 'Excellence and Enjoyment' guidance - to raise standards whilst making learning fun. The Maths Investigator approach focuses on developing the key skills of problem solving, speaking and listening, and using and applying maths. It uses the engaging spy context to integrate maths into problem solving and give pupils a clear purpose for learning. The Casebook uses photographic visual clues to bring maths to life. Pupils interpret the information from messages on the Interactive CD alongside the Casebook clues to solve each case through logical thinking about the overall problem. The investigative approach promotes discussion and collaborative group work, while the fun spy themes and real-life contexts embed maths into problem-solving and offer opportunities for cross-curricular links.