The Rekenrek is an increasingly popular manipulative to provide students with a strong understanding of early number concepts. Using the Rekenrek, these 48 engaging activities help children master early skills such as counting, subitizing, the decomposition of numbers, and more. Each lesson is correlated to the Common Core content and practice standards and includes step-by-step instructions, suggested assessment questions, and reproducible blackline masters. Also included is a link to a virtual Rekenrek - great for classroom display. 180 pages. Grades K-1.