Description In Uma and the Rumbling Trucks, beginning readers learn about the many sounds and functions of the vowel U. Follow along as Uma watches the workers, trucks, and tools at a construction site by her house. Vibrant illustrations and carefully leveled text will engage young readers in a supportive educational fiction reading experience.. . Supplementary back matter helps readers review the story, while a picture glossary reinforces new vocabulary. Uma and the Rumbling Trucks also features reading tips for teachers and parents and a table of contents. . . Grasshopper Books offers simple, fun fiction for emerging readers. Uma and the Rumbling Trucks is part of Jump!'s Vowel Adventures series.