Finally, a hands-on tool to help students discover the rules of integer operations! These beaded number lines feature red and yellow beads to represent negative and positive numbers. They are the perfect manipulative to model problems involving all four operations with integers.

The set includes 10 student bead strings with 20 negative red beads and 20 positive yellow beads per string. Twenty-five clothespins are also included for students to mark zero on their number lines. Teachers will appreciate the full-color guide with activities for whole-class, small-group, and independent math stations. 

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