Gabriel Merrick 
Es hora de salir de excursión (It»s Time for a Field Trip) [PDF ebook] 

What could be more fun than a trip to the zoo? Readers will follow Amanda as she and her classmates enjoy a delightful fieldtrip to see zebras, lions, and more. With time told in hour-long increments, readers will be introduced to the practice of time telling at an accessible level. Eye-catching illustrations will hold the attention of beginning readers. This book is an enjoyable supplement to early elementary curricular studies.