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NASAKSN - Negative Numbers (2003)
NASA Kids Science News segment explaining how negative numbers work.

Genre: Educational
Keywords: NASA Kids Science News; Negative Numbers; Number Line; Thermometer; Subtraction; Minus; Zero; Less Than;
Duration: 00:00:58
Popularity (downloads): 1530

The Open Video Project is managed at the Interaction Design Laboratory,
at the School of Information and Library Science, University of North Carolina at Chapel Hill