Description 《Fast Clocks and Time for Busy Elementary Students》 Everything elementary students find difficult about clocks and time, gathered into one book! ■ Many children struggle with the concepts of time and duration. "What's the difference between a point in time and a duration?" "I get confused between AM and PM." "Converting time units is hard." "How do I read a torn-off calendar page?" Time is one of the areas that trips up children the most in early elementary math. So challenging for both kids and moms alike, it's often called the 'swamp' or 'hidden pitfall' of elementary math among parents. In particular, the 'Time and Duration' unit taught in 2nd grade covers many concepts in a short period, and since these ideas are quite abstract, many children find it especially hard. If they move on without a solid understanding and enough practice, they'll struggle again with 'Calculating Time' in 3rd grade. That's why it's best to build a firm foundation in 1st and 2nd grade and practice thoroughly. ■ Train on clocks and time scattered across 1st, 2nd, and 3rd grade—all in one place! Time, one of the concepts most closely tied to daily life, is taught across several semesters: 'Reading Clocks and Finding Patterns' in 1st grade (2nd semester), 'Time and Duration' in 2nd grade (2nd semester), and 'Length and Time' in 3rd grade (1st semester). This book brings together everything from reading clocks, to time and duration, to calculating time (without carrying or borrowing), into a single volume. Content that's too easy from 1st grade has been trimmed, while more practice has been added for the 2nd grade time concepts that children commonly find difficult and make mistakes on, creating a flexible and well-balanced set of problems. Studying with this book allows children to pull together all the scattered time concepts from the early elementary years and build a solid foundation all at once. ■ Practice 'Clocks and Time' step by step, accurately, from the basics! This book connects the most fundamental skills—reading o'clock and half-past times (1st grade, 2nd semester)—through to reading 5-minute and 1-minute increments (2nd grade, 2nd semester), and even reading seconds (3rd grade, 1st semester). Reading time is different from reading numbers. Children need to start by practicing correct reading and writing, such as saying 'three o'clock' and 'four o'clock' properly rather than misreading them. Once children can read time accurately, they'll also be able to handle trickier skills like 'reading time in different ways' and 'finding elapsed time.' Let this book help your child build an accurate foundation from the very basics. ■ Learn concepts easily through pictures and fill-in-the-blank exercises! This book first introduces each concept through illustrations, then has children fill in blanks to understand it on their own. Quizzes to check understanding and sections that answer common questions further support comprehension. When converting time units—such as changing hours into minutes—it's important to first show a clock and explain why one hour equals 60 minutes, rather than just applying a formula. Because truly understanding 'time and duration' means understanding the reasoning behind it. ■ Master concepts with practice problems, then take on real-life word problems! Once a concept is understood, it's time to practice with an appropriate number of problems. This book has children master each concept individually, then review by combining earlier concepts. It then naturally leads into basic word problems, building up to real-life word problems. Each chapter's fine-grained concepts can also be fully reviewed through fun wrap-up problems at the end. ■ Start learning with an interesting look at the history of clocks! Before diving into the main lessons, this book introduces the history of clocks. From the ancient sundials used by the Mesopotamians, to Egypt's massive pointed stone 'obelisk' sundials and water clocks, all the way to the digital and analog clocks we use today—this history is presented through fun illustrations and text. Children can start their studies with genuine curiosity about clocks. ■ This book's progress chart! Achieve your learning goals together with 'Ppadugi in the Strange Clock Kingdom'! At the start of each chapter, children color in today's completed step, helping Ppadugi escape the 'Strange Clock Kingdom' step by step. After completing all three chapters of this book, children get to enjoy a feast together with Ppadugi's friend, Ppeunyang. Children will feel as though...