Kumon workbooks are based on the "Kumon Method", an educational philosophy that aims at unlocking the full learning potential of each individual child. The Kumon Method introduces learning concepts in an incremental, step-by-step approach, allowing children to master new skills easily and without anxiety or frustration. As a result, children gain confidence in their abilities and are motivated to learn on their own.Over 3.5 million children around the world use the Kumon Method to develop their math and reading skills. Kumon Math and Reading Centers help students become successful, confident and self-motivated learners. It's not just the Kumon Method that makes these workbooks special. It's also the care and research that goes into the editorial content, design and quality of the books. Kumon's editorial experts have more than two decades of experience in producing books that are both fun and educational. Kumon's designers create illustrations that attract and delight children. And the quality of the books is the best of any workbook on the market, with extra thick paper and the best available print quality. From pedagogy to paper, every one of Kumon's workbooks has been carefully crafted with your child's best interests in mind.Number Workbooks: Disover the world of numbers. The connect-the-dots exercises on the odd-numbered pages of the book provide children with opportunities to become familiar with the concept of ordinal numbers while enjoying the "guess who's hiding" games. The color-by-number exercises on the even-numbered pages are designed to enhance number recognition. These two abilities are crucial for creating the basis for addition and subtraction skills and beyond. Ages 3 to 5.Each Numbers Workbook is 8 1/4 x 11 2/3 inches, paperback, 80 pages, full color.