What is a muscle? How do they work? Why are they so important? Find out the answers to all of these questions in this information book, filled with detailed illustrations and photographs.

• Collins Big Cat Progress builds confidence, helping struggling pupils not only to read, but to love reading
• Dual-banded books provide age-appropriate interest level material matched with a lower reading ability level
• Every book is levelled by reading expert Cliff Moon to ensure precise, systematic, measurable progression to help close the ability gap
• The books use a range of reading strategies: phonic, graphic, syntactic and contextual to build confident, accurate, fluent readers
• Designed to build speaking and listening skills, as well as reading skills, the books are highly visual and include incredible illustrations and photographs
• Every book has a Key Stage 2 look-and-feel to engage older pupils and avoid stigmatisation
• Topics are relevant for children in years 3-6 and connected to the curriculum and framework objectives for these years to support inclusion
• Progress titles contain a Reader Response page to encourage the pupil to respond to and recall what they have read. This offers an ideal opportunity to check comprehension
• Ideas for Reading, written by primary literacy expert Gill Howell are included in the back of every book to help you support the reading needs of each child
• This book has been quizzed for Accelerated Reader.