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Rekenreks (also known as arithmetic racks or calculating frames) are ideal for building number sense in students. The Rekenrek gives students a concrete, physical object to help develop and deepen their understanding of numbers. Students build a strong sense of 5 and 10 and learn about the relationships among numbers and operations along the way. PRODUCT PERKS Sturdy wooden frames endure daily classroom use and are easy to clean 2 rows of 10 beads each to show multiple ways of looking at numbers 5 red beads and 5 white beads on each row encourages subitizing WHAT TO TEACH Subitizing: Color-coded beads help students identify numbers visually without counting Composing & Decomposing Numbers: Make and break values to five and ten Addition & Subtraction Strategies: Doubles strategies, near five, near ten, counting on