"What are rational numbers? The foundation of a strong understanding in mathematics begins and ends with the classification of numbers. Where do they belong? What are they called? Where can I use them? How do they interact with each other? These are some of the many questions we try to answer as we study mathematics." Topics covered include adding, subtracting, dividing, and multiplying rational numbers, comparing integers, and absolute zero. Includes accompanying power points, a webquest, and a podcast.