Description Dad Gets Fit . Dad has taken up jogging to try to get fit, but things keep getting in the way of his efforts! Jobs on a Jet . Val goes to work with Mom on her jet. There are so many jobs to do. Which ones are fun? The phonemes /j/v/w/ are featured in this title. In Level 3 - Yellow books, children build on the letter-sound combinations learned in levels 1 and 2. They learn consonant digraphs (sounds made up of two letters together such as 'ch' or "ll") and long vowel sounds (such as 'igh' or 'ai').