9It is important to keep fit. It is good for your body and mind. Read about different sports and exercises that you can do to stay fit! The grapheme /c/ is featured in this title. Keeping Fit is part of Decodables by Jump!, a comprehensive library of decodable leveled readers that follow a sequenced approach to phonics instruction. Young readers will enjoy colorful, photo-packed nonfiction as they follow a prescribed format supported by the science of reading that encourages reading development.