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Student Number Rack Kit

  • SKU:  RRNRS10
  • Grade Level: K-2
  • $10.00
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The Number Rack, also known as a Rekenrek or Math Rack, is a manipulative used for elementary math.

This Student Number Rack Kit includes all the materials required to build ten student number racks—10 matte boards, 20 pipe cleaners, and 100 beads of each color. Assembly instructions included.

Please see Safety Warning 8.

Free Number Rack App

Number Rack App

 

The Number Rack app facilitates the natural development of children's number sense. Rows of moveable, colored beads encourage learners to think in groups of fives and tens, helping them to explore and discover a variety of addition and subtraction strategies.

Available for Apple and Chrome devices, as well as for the web.

Open Web App

Download to Your Device

 

Learning to Think Mathematically with the Rekenrek

Learning to Think Mahematically with the Rekenrek

 

This book provides teachers with the theoretical basis, practical knowledge, and expertise to use a powerful mathematical tool called the Rekenrek (also known as the Arithmetic Rack). This book helps children recognize number combinations of five and ten, develop a rich sense of numbers between 0 and 20, and build a powerful set of intuitive strategies for addition and subtraction of both single and double digit numbers.

Download English PDF

Download Spanish PDF

 

Learning to Think Mathematically with the Rekenrek—Supplemental Activities

Learning to Think Mathematically with the Rekenrek—Supplemental Activities

 

This compilation of student-ready activities builds upon the contexts and learning objectives in Learning to Think Mathematically with the Rekenrek. Students solve imaginable, accessible problems motivating the key mathematical principles accessed through the rekenrek model, including cardinality, one-to-one-relationships, part-part-whole relationships, and subitizing.

Download PDF

 

Using the Rekenrek as a Visual Model for Strategic Reasoning in Mathematics

Using the Rekenrek as a Visual Model for Strategic Reasoning in Mathematics

 

Ten activities along with an introduction to using the Rekenrek or Number Rack. Includes correlations to the Common Core State Standards.

Download PDF

 

Materials Needed

  • 1 piece of mat board, 6" x 3"
  • 2 black pipe cleaners
  • 10 red beads
  • 10 white beads
  • 4 strips of tape

 

Instructions

Along the short side of the mat board cut two small notches one inch from each edge. Thread five white beads followed by five red beads onto each pipe cleaner. Place each pipe cleaner onto the front of the matte board and fold the ends into the notches and around to the back. Secure pipe cleaner ends with tape.

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