• Finally, a hands-on tool to help students discover the rules of integer operations!
• Includes full-color guide.

by Dr. Alison J. Mello Beaded number lines 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 clothes pins are also included for students to mark zero or other numbers on their number lines.