Plus 1' is for anyone who benefits from repeated practice and explanation. This book stems from the need of some learners to have more reinforcement and practice than is often available. 'Plus 1' has developed from the success of 'Power of 2'. Plus 1 focuses on basic number concepts and has been written following the demand for an introductory resource. Plus 1 is designed to be used by student with a coach supporting their learning. On completing Plus 1, student and coach should begin 'Power of 2.