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Teacher Bulletin | Volume 11

Appropriate for grades 7, 8, 9, 10, 11, 12

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Rational Numbers

For most of our lives, since the moment we begin to make sense of the world, we work with rational numbers. There is no way to escape them. Whether we decide to work at the World Trade Center managing billions and trillions, become the next best thing in NASCAR, explore other planets, become an athletic trainer, work at the family business, or be a stay-at-home mom or dad, rational numbers will be part of our daily lives. So, 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.