Using Kumon's step-by-step approach, these workbooks introduce children to the concept of telling time. This first workbook concentrates on the hours and then incrementally introduces children to half- and quarter-hours. The second book focuses on telling time by minutes and seconds. Kumon Math Skills Workbooks are unique because they focus on teaching one specific skill from start to finish. With just the right amount of practice, children master each topic and gain confidence without becoming bored or frustrated.