Grace Houser 
Por qué ser puntual (Why Do We Have to Be on Time?) [PDF ebook] 

Being on time is important, and not just for the person who has some place to be. Running late has an affect on other people, too. Students will learn why we need to be on time and what happens when we“re not. Early elementary civics concepts from the C3 Framework for Social Studies are discussed throughout, with a focus on how our everyday actions play a role in the common good of our society.