Education Technology

NUMB3RS - Season 2 - "In Plain Sight" - Error Correction

Published on 10/17/2008

Activity Overview

During the episode "In Plain Sight," Larry scratches a CD with a paper clip. He tells Don "If I scratched a record, it would be ruined, but this CD will still play. I've created gaps in the readable data." If data has been destroyed, how can the CD still be played? Charlie explains: "[With] Reed-Solomon Error Correcting Code, the software fills in the gaps, making an educated guess about what it should be resulting in complete images from partial data."

Before the Activity

Download the attached PDF and look over the Teacher Page.

During the Activity

Discuss the materials from the Student Page with your class.

After the Activity

Encourage students to explore web sites and questions from the Extensions page.