Valuta : 
Provide structured support and extra practice with differentiated questions that focus on reasoning and problem-solving building the exam skills needed to succeed in the new GCSE specifications;developed by a team of expert authors with examining experience. - Develops confidence and supports independent learning with graduated exercises for each unit. - Builds fluency problem-solving and reasoning skills with exam-style questions that build on previous learning. - Provides full coverage of the GCSE grade range with three books - matching the student books - meaning that content is focused at the right level for each student.