Richard Little 
I Know About Telling Time [PDF ebook] 

"Is it time yet?" This useful book helps readers practice answering this question for themselves using analog clocks. They’ll learn what each clock hand indicates and how to tell time in hour and half-hour increments. Telling time using an analog clock is an important step for young learners, and an early standard of Common Core math, and this straightforward text and accompanying photographs guide readers in mastery of that fundamental skill. Final questions aid in evaluating what they’ve learned.